Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1981-12-02
1983-10-11
Cockeram, H. S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
428426, 528 76, 528904, C08G 1882, C08G 1848, B32B 1706
Patent
active
044093837
ABSTRACT:
Articles of commerce which are transparent at a first temperature and less transparent at a second temperature which is different from said first temperature and which are capable of reverting to the original state of transparency are obtained by curing compositions containing at least one isocyanate-functional monomeric or polymeric material which may or may not contain hydrophilic centers consisting essentially of ethylene oxide units having the structure (CH.sub.2 CH.sub.2 O).sub.n, wherein n is at least two. When the isocyanate-functional material does not contain such hydrophilic centers, it must be cured in the presence of at least one monomeric or polymeric material which may or may not be reactive with isocyanate groups but must contain such hydrophilic centers. Thermosensitivity is imparted to the cured products by the presence of water in the cured material.
REFERENCES:
patent: 3822238 (1974-07-01), Blair et al.
patent: 3823027 (1974-07-01), Wismer et al.
patent: 3854982 (1974-12-01), Aelion et al.
patent: 3939123 (1976-02-01), Matthews et al.
patent: 3940542 (1976-02-01), Knopf et al.
patent: 3984584 (1976-10-01), Brose et al.
patent: 3988272 (1976-10-01), Watts et al.
patent: 3993798 (1976-11-01), Brose et al.
patent: 4005244 (1977-01-01), Wismer et al.
patent: 4039414 (1977-08-01), McGinniss
patent: 4072592 (1978-02-01), Due et al.
patent: 4075366 (1978-02-01), Packer et al.
patent: 4118366 (1978-10-01), Brose et al.
patent: 4133723 (1979-01-01), Howard
patent: 4170583 (1979-10-01), Itoh et al.
patent: 4182827 (1980-01-01), Jones et al.
patent: 4187364 (1980-02-01), Darms et al.
patent: 4206980 (1980-06-01), Krueger et al.
patent: 4209605 (1980-06-01), Hoy et al.
patent: 4215168 (1980-07-01), Yonemura et al.
patent: 4359558 (1982-11-01), Gould et al.
JPOS, vol. 64, No. 7, (Jul. 1982), pp. 392-414.
Howard Dennis D.
Nulph Michael L.
Sexsmith Frederick H.
Zalucha Denis J.
Cockeram H. S.
Gazewood John A.
Lord Corporation
LandOfFree
Thermally-responsive polymeric materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermally-responsive polymeric materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermally-responsive polymeric materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1276433