Stock material or miscellaneous articles – Composite – Including interfacial reaction product of adjacent layers
Patent
1984-10-30
1985-11-12
Robinson, Ellis P.
Stock material or miscellaneous articles
Composite
Including interfacial reaction product of adjacent layers
1563069, 1563311, 1563314, 1563317, 156334, 427302, 427340, 4274125, 4284233, 4284239, 4284248, 428517, 428519, B32B 710, B32B 3106, B32B 2740
Patent
active
045528160
ABSTRACT:
The invention discloses a novel process for producing covalently bonded laminated structures composed of polyurethane elastomer and vulcanized rubber layers. As the joining means for covalently bonding the polyurethane elastomer and vulcanizable rubber laminates the process utilizes novel grafted polyurethane joining compositions comprised of polyurethane elastomer, a polyisocyanate, and a hydroxyl containing polybutadiene difunctional linker molecule. In practicing the process of the invention, the grafted polyurethane joining composition is first prepared by means that create covalent chemical bonds between the polyurethane elastomer and a first functional (NCO) group on the polyisocyanate, as well as between a hydroxyl on the polybutadiene difunctional linker molecule and a second functional (NCO) group on the polyisocyanate. This novel grafted polyurethane composition is then used to bond layers of polyurethane elastomer to layers of vulcanizable rubber. In constructing a laminated product, the grafted polyurethane joining composition is interposed between the polyurethane elastomer and vulcanizable rubber layers. The resulting assembly is then heated at a temperature sufficient to allow formation of covalent bonds.
REFERENCES:
patent: 2905582 (1959-09-01), Coleman, Jr. et al.
patent: 3528848 (1970-09-01), Zoebelein
patent: 3925590 (1975-12-01), Hausch et al.
patent: 4042441 (1977-08-01), Wasserman
patent: 4053680 (1977-10-01), Wasserman
patent: 4232608 (1980-11-01), Wrightson
patent: 4328281 (1982-05-01), Wrightson
patent: 4332858 (1982-06-01), Saitoh
patent: 4337111 (1982-06-01), Kauffman
Green George F.
Spahic Bojana K.
Novacor Medical Corporation
Robinson Ellis P.
LandOfFree
Process for producing rubber laminates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing rubber laminates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing rubber laminates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1879845