Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1987-12-04
1989-03-28
Cashion, Jr., Merrell C.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156160, 156229, 15624424, 156299, 264164, 264229, 264230, 2642884, 264291, 264342RE, B29C 5504, B32B 3104
Patent
active
048160946
ABSTRACT:
A heat-shrinkable elastomer having a first length is produced by uniaxially orienting a copolymer having hard block and elastomeric soft block polymer segments to a second length which is substantially greater than a third length at which partial permanent deformation occurs. Upon removal of the tensioning force, the stretched elastomer naturally relaxes to the third length which is substantially greater than the first length but less than the second length. Upon application of heat, the elastomer shrinks and recovers its elastic properties. The heat-shrinkable elastomer can be coextruded by conventional techniques as a core layer disposed between nonelastic outer layers or skins, and the resulting coextruded elastomer can be uniaxially tensioned as above. Articles or garments such as disposable diapers advantageously use the heat-shrinkable elastomer of the present invention as a means to shirr portions thereof, such as waistbands.
REFERENCES:
patent: 3479425 (1969-11-01), Lefevre et al.
patent: 3536803 (1970-10-01), Epstein
patent: 3557265 (1971-01-01), Chisholm et al.
patent: 3639917 (1972-02-01), Althouse
patent: 3819401 (1974-06-01), Massengale et al.
patent: 3912565 (1975-10-01), Koch et al.
patent: 4152387 (1979-05-01), Cloeren
patent: 4303571 (1981-12-01), Jansen et al.
patent: 4337777 (1982-07-01), Pieniak
patent: 4418123 (1983-11-01), Bunnelle et al.
patent: 4467595 (1984-08-01), Kramers
patent: 4476180 (1984-10-01), Wnuk
patent: 4486507 (1984-12-01), Schumacher
Christianson Rodney C.
Jacobs Mark C.
Matray Attila
Pomplun William S.
Cashion Jr. Merrell C.
Kimberly-Clark Corporation
Yee Paul
LandOfFree
Method of producing a heat shrinkable elastomer and articles uti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing a heat shrinkable elastomer and articles uti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a heat shrinkable elastomer and articles uti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1657038