583:
1300:
75:
312:, a Canadian federal crown corporation established in 1942 to produce artificial rubber to substitute for overseas supply cut off by World War II. It was renamed Polysar in 1976 and the rubber component became a subsidiary, Polysar Rubber Corp. The company was privatized in 1988 with its sale to NOVA Corp which, in turn, sold Polysar Rubber in 1990 to Bayer AG of Germany. In 2005 Bayer AG spun off chemical divisions, including most of the
1310:
25:
175:
598:
Recycled chewing gum has also been used as a source of recovered polyisobutylene. Amongst other products, this base rubber has been manufactured into coffee cups and 'Gumdrop' gum-collecting bins. When filled, the collecting bins and their contents are shredded together and recycled again.
319:
PIB homopolymers of high molecular weight (100,000–400,000 or more) are polyolefin elastomers: tough extensible rubber-like materials over a wide temperature range; with low density (0.913–0.920), low permeability and excellent electrical properties.
485:
Butyl rubber is generally used in speakers, specifically the surrounds. It was used as a replacement for foam surrounds because the foam would deteriorate. The majority of modern speakers use butyl rubber, while most vintage speakers use foam.
545:
materials. It is a harder and less porous material than other elastomers, such as natural rubber or silicone, but still has enough elasticity to form an airtight seal. While butyl rubber will break down when exposed to agents such as
594:
uses food-grade butyl rubber as the central gum base, which contributes not only the gum's elasticity but also gives it a stubborn, sticky quality which has led some municipalities to propose taxation to cover costs of its removal.
518:
repair and for maintenance of roof membranes (especially around the edges). It is important to have the roof membrane fixed, as a lot of fixtures (e.g., air conditioner vents, plumbing, and other pipes) can considerably loosen it.
121:
of isobutylene, or 2-methyl-1-propene, on which butyl rubber is based. Butyl rubber is produced by polymerization of about 98% of isobutylene with about 2% of isoprene. Structurally, polyisobutylene resembles
936:
677:
529:
Polyester fabric laminated to butyl rubber binder provides a single-sided waterproof tape that can be used on metal, PVC, and cement joints. It is used for repairing and waterproofing metal roofs.
856:
627:
Polyisobutylene is used as the primary seal in an insulating glass unit for commercial and residential construction providing the air and moisture seal for the unit.
399:
and motor fuels, they can have a substantial effect on the properties of the oil or fuel. Polyisobutylene added in small amounts to the lubricating oils used in
207:, butyl rubber is impermeable to air and used in many applications requiring an airtight rubber. Polyisobutylene and butyl rubber are used in the manufacture of
681:
235:
concentrates, for rubber and polymer modification, for protecting and sealing certain equipment for use in areas where chemical weapons are present, as a
477:. Polyisobutylene binder is used because it makes the explosive more insensitive to premature detonation as well as making it easier to handle and mold.
1175:
43:
796:
744:
526:). It is crucial to the integrity of such roofs to avoid using harsh abrasive materials and petroleum-based solvents for their maintenance.
362:
In the spring of 2013 two incidents of PIB contamination in the
English Channel, believed to be connected, were described as the worst UK
275:
842:
941:
412:
366:'for decades'. The RSPB estimated over 2,600 seabirds were killed by the chemical and hundreds more were rescued and decontaminated.
522:
Rubber roofing typically refers to a specific type of roofing materials that are made of ethylene propylene diene monomers (
1346:
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554:) or certain solvents, it breaks down more slowly than comparable elastomers. It is therefore used to create seals in
293:
61:
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969:
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339:) variants, providing significantly higher curing rates and allowing covulcanization with other rubbers such as
663:
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results in a significant reduction in the generation of oil mist and thus reduces the operator's inhalation of
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1475:
1273:
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304:, N.J., laboratory. Today, the majority of the global supply of butyl rubber is produced by two companies,
566:
Butyl and bromobutyl rubber are commonly used for manufacturing rubber stoppers used for sealing medicine
1268:
1170:
146:
Butyl rubber has excellent impermeability to gas diffusion, and the long polyisobutylene segments of its
1620:
1465:
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388:
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807:
138:
material. It is generally odorless and tasteless, though it may exhibit a slight characteristic odor.
1615:
745:"A perspective on the potential development of environmentally acceptable light-duty diesel vehicles"
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446:. It is blended with other detergents and additives to make a "detergent package" that is added to
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when pulled, causing the oil to resist breakup when it is vacuumed from the surface of the water.
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in 1931 using a boron trifluoride catalyst at low temperatures and sold under the trade name
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8:
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704:
Understanding
Polyisobutylene Succinimides (PIBSI) and Internal Diesel Injector Deposits
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1000:
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707:
611:, butyl rubber and halogenated rubber are used for the innerliner inside pneumatic
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502:) and to make bicycle inner tubes to provide a tough, airtight inner compartment.
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rubber. Halobutyl is today the most important material for the inner linings of
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Butyl rubber is used for the bladders in sporting balls (e.g. Rugby balls,
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806:. United States Court of International Trade. 2004-07-15. Archived from
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726:"Case Studies: Minimizing Worker Exposure to Mist in the Auto Industry"
616:
470:
305:
251:
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134:
atom, rather than one. Polyisobutylene is a colorless to light yellow
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Butyl rubber is one of the most robust elastomers when subjected to
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It was later developed into butyl rubber in 1937, by researchers
232:
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231:(2 stroke engine oil), paper and pulp, personal care products,
216:
131:
101:. The abbreviation IIR stands for isobutylene isoprene rubber.
1324:
254:. This remains an important segment of its market even today.
990:
567:
220:
1358:
1225:
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267:
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473:
industry as a binding agent in plastic explosives such as
266:
in 1825. Polyisobutylene (PIB) was first developed by the
16:
Synthetic rubber; a copolymer of isobutylene with isoprene
947:
881:
843:"Halobutyl rubber for pharmaceutical stoppers and seals"
742:
359:
for the many patents he held for these developments.
285:. PIB remains a core business for BASF to this day.
903:"The chewing gum you don't mind stuck to your shoe"
34:
may be too technical for most readers to understand
1176:Rubber Industry Smallholders Development Authority
457:Polyisobutylene is used in some formulations as a
450:and diesel fuel to resist buildup of deposits and
250:. The first major application of butyl rubber was
743:Hammerle R, Schuetzle D, Adams W (October 1994).
1597:
706:(Technical report). SAE Technical Paper Series.
701:
505:
732:. Environment Protection Agency. 29 April 2015.
480:
374:
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963:
644:"Butyl Rubber: A Techno-commercial Profile".
308:(one of the descendants of Standard Oil) and
678:"Polyisobutylene Succinimides in Engine Oil"
607:Because of their superior resistance to gas
316:site, creating LANXESS AG, also of Germany.
859:. American Chemical Society. Archived from
664:"biggest UK pollution incident for decades"
1347:
1333:
970:
956:
561:
387:(PIBSA), which can then be converted into
105:, also known as "PIB" or polyisobutene, (C
942:Physical properties and other information
768:
407:. It is also used to clean up waterborne
62:Learn how and when to remove this message
46:, without removing the technical details.
944:for various polyisobutylene (PIB) grades
581:
73:
533:Gas masks and chemical agent protection
1598:
817:
85:, sometimes just called "butyl", is a
1328:
951:
622:
489:
469:Polyisobutylene is often used by the
442:, leading to reduced hydrocarbon and
331:) was developed, in its chlorinated (
150:chains give it good flex properties.
44:make it understandable to non-experts
1309:
900:
391:(PIBSI) by reacting it with various
379:Polyisobutylene can be reacted with
18:
797:"04-87 BASF Corp. v. United States"
13:
586:Gumdrop chewing gum collecting bin
411:as part of the commercial product
14:
1632:
932:Brief overview of Polyisobutylene
925:
510:Butyl rubber sealant is used for
1308:
1299:
1298:
1183:Rubber Manufacturers Association
1156:Goodyear Tire and Rubber Company
652:(12): 207–211. November 3, 2009.
385:polyisobutenylsuccinic anhydride
198:cationic addition polymerization
173:
23:
1471:2,4-Dimethyl-6-tert-butylphenol
1354:
894:
874:
849:
558:and other protective clothing.
857:"Making "Greener" Chewing Gum"
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789:
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718:
695:
670:
666:. London Guardian. 3 May 2013.
656:
637:
577:
395:. When used as an additive in
262:Isobutylene was discovered by
1:
506:Damp proofing and roof repair
464:
153:The formula for PIB is: –(–CH
141:
1542:Automatic transmission fluid
1476:Dinonylnaphthylsulfonic acid
1428:Racing fuel (Tetraethyllead)
1274:Persistent organic pollutant
1188:United States Rubber Company
481:Speakers and audio equipment
7:
1269:Great Pacific garbage patch
1171:Rubber industry in Malaysia
901:Shaw, Dougal (2018-03-06).
702:J. Reid; J. Barker (2013).
375:Fuel and lubricant additive
130:substituted on every other
10:
1637:
1466:Dimethyl methylphosphonate
977:
680:. Lubrizol. Archived from
434:properties. When added to
389:polyisobutenylsuccinimides
257:
215:compounds, ball bladders,
211:, agricultural chemicals,
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1524:
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1201:
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1041:
983:
1451:Butylated hydroxytoluene
1064:Micronized rubber powder
825:"Explosives - Compounds"
749:Environ. Health Perspect
630:
602:
438:, it resists fouling of
323:In the 1950s and 1960s,
180:It can be made from the
172:The formula for IIR is:
1557:Windshield washer fluid
1501:Methyl tert-butyl ether
1481:2,6-Di-tert-butylphenol
1393:Lead Replacement Petrol
1249:Airfield rubber removal
1082:Biodegradable additives
562:Pharmaceutical stoppers
539:chemical warfare agents
419:it increases the oil's
369:
203:A synthetic rubber, or
1408:Compressed natural gas
1193:List of tire companies
937:Additional information
845:. ExxonMobil Chemical.
587:
430:, polyisobutylene has
357:Charles Goodyear Medal
79:
1264:Environmental hazards
761:10.1289/ehp.94102s425
585:
444:particulate emissions
227:, electrical fluids,
77:
712:10.4271/2013-01-2682
1102:Polymer stabilizers
310:Polymer Corporation
78:Butyl rubber gloves
1461:1,2-Dichloroethane
1221:Rubberized asphalt
1087:Filler (materials)
1011:Chloroprene rubber
755:(Suppl 4): 25–30.
623:Insulating windows
588:
490:Sporting equipment
355:received the 1979
353:Francis P. Baldwin
335:) and brominated (
80:
32:This lead section
1621:Thickening agents
1593:
1592:
1516:Tetranitromethane
1496:Metal deactivator
1456:1,2-Dibromoethane
1322:
1321:
1281:Tire-derived fuel
1123:Rubber technology
1111:Rubber processing
1031:Styrene-butadiene
730:Green Engineering
345:styrene-butadiene
290:William J. Sparks
72:
71:
64:
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1616:Organic polymers
1580:MTBE controversy
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1254:Rubber pollution
1097:Polymer additive
1042:Mechanical types
1001:Synthetic rubber
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781:. Archived from
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619:in older tires.
459:thickening agent
415:. When added to
397:lubricating oils
381:maleic anhydride
364:marine pollution
300:of New Jersey's
294:Robert M. Thomas
284:
252:tire inner tubes
177:
87:synthetic rubber
67:
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1373:Gasoline/petrol
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1026:Silicone rubber
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908:BBC News Online
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646:Chemical Weekly
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543:decontamination
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498:, basketballs,
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421:viscoelasticity
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264:Michael Faraday
260:
195:
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184:isobutylene (CH
168:
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103:Polyisobutylene
68:
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40:help improve it
37:
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5:
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1611:Fuel additives
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1511:Tetraethyllead
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1021:Nitrile rubber
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996:Natural rubber
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984:Chemical types
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926:External links
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813:on 2006-09-23.
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785:on 2005-11-25.
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440:fuel injectors
393:ethyleneamines
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349:tubeless tires
341:natural rubber
327:butyl rubber (
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223:and sealants,
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882:"Gumdrop Ltd"
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863:on 2015-12-24
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804:Slip Opinions
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128:methyl groups
125:
124:polypropylene
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66:
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55:
45:
41:
35:
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21:
20:
1506:Nitromethane
1446:Butyl rubber
1445:
1423:Butanol fuel
1216:Rubber mulch
1166:Rubber Board
1059:Crumb rubber
1006:Butyl rubber
1005:
912:. Retrieved
906:
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876:
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861:the original
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682:the original
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590:Most modern
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136:viscoelastic
102:
83:Butyl rubber
82:
81:
58:
52:January 2019
49:
33:
1547:Brake fluid
1398:Electricity
1388:Biogasoline
1211:Rubber band
1146:Bridgestone
1092:Plasticizer
1054:Foam rubber
1049:Cold rubber
1016:EPDM rubber
592:chewing gum
578:Chewing gum
524:EPDM rubber
436:diesel fuel
333:chlorobutyl
325:halogenated
279: [
248:chewing gum
213:fiber optic
196:) only via
119:homopolymer
95:isobutylene
1606:Elastomers
1600:Categories
1537:Antifreeze
1366:Fuel types
914:2018-03-13
887:2018-03-13
867:2015-12-23
688:2017-02-14
617:inner tube
471:explosives
465:Explosives
409:oil spills
337:bromobutyl
306:ExxonMobil
229:lubricants
225:cling film
142:Properties
1575:Fuel card
1532:Motor oil
1383:Biodiesel
1075:Additives
609:diffusion
556:gas masks
514:, rubber
496:footballs
432:detergent
417:crude oil
401:machining
329:halobutyl
276:Oppanol B
272:IG Farben
209:adhesives
205:elastomer
117:, is the
91:copolymer
1552:Gear oil
1413:Hydrogen
1403:Kerosene
1304:Category
1203:Products
1161:Michelin
1138:Industry
500:netballs
448:gasoline
405:oil mist
383:to make
270:unit of
237:gasoline
99:isoprene
1486:Ecalene
1418:Ethanol
1314:Commons
1259:Dioxins
779:7529704
770:1566943
572:bottles
552:ammonia
413:Elastol
258:History
233:pigment
217:O-rings
182:monomer
148:polymer
38:Please
1567:Retail
1525:Fluids
1378:Diesel
1151:Dunlop
978:Rubber
777:
767:
314:Sarnia
302:Linden
246:, and
241:diesel
221:caulks
132:carbon
1359:fuels
1356:Motor
1242:Waste
1231:codes
1226:Tires
991:Latex
811:(PDF)
800:(PDF)
631:Notes
603:Tires
568:vials
426:As a
296:, at
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188:=C(CH
157:–C(CH
97:with
775:PMID
570:and
541:and
516:roof
370:Uses
343:and
292:and
268:BASF
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765:PMC
757:doi
753:102
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475:C-4
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