Methods for bonding dissimilar synthetic polymeric materials and

Details Methods for bonding dissimilar synthetic polymeric materials and Methods for bonding dissimilar synthetic polymeric materials and

1980-09-08

1982-11-30

Robinson, Ellis P.

Stock material or miscellaneous articles

Composite

Including interfacial reaction product of adjacent layers

20415916, 20415919, 427 541, 427302, 27333, 4273722, 4284233, 4284244, 4284246, 4284248, 428522, B32B 704, B32B 3104, B32B 2740, B32B 7730

Patent

active

043616267

ABSTRACT:
A method of improving the bond between dissimilar synthetic polymeric materials, such as, for example, a vinyl resin material and a polyurethane or acrylated polyurethane resin material which comprises: including in the vinyl resin material a chemical compound possessing hydroxy, carboxy, amido, amino, imino, mercapto, or like functions containing reactive hydrogen; providing free, available isocyanate in the polyurethane or acrylated polyurethane resin material; bringing the vinyl resin material and the polyurethane or acrylated polyurethane resin material into contact; and exposing the vinyl resin material and the polyurethane, or acrylated polyurethane resin material, while in contact, to curing conditions, whereby there is sufficient chemical inter-reaction between these resin materials as to create a strong and permanent primary chemical bond therebetween, in addition to any secondary bonds, such as hydrogen bonds and/or van der Waals forces. The present invention also relates to the products involved in and resulting from such methods.

REFERENCES:
patent: 3528848 (1970-09-01), Zoebelein
patent: 3877969 (1975-04-01), Tatsumi
patent: 4100318 (1978-07-01), McCann
patent: 4232608 (1980-11-01), Wrightson

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