Coating blend compositions

Details Coating blend compositions Coating blend compositions

1991-06-06

1993-06-22

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C08K 554

Patent

active

052217078

ABSTRACT:
A coating blend composition is a physical admixture of an adhesion promoter resin and a coating material resin. The blend can be cured by one or more curing agents existing within either the adhesion promoter resin, the coating material resin, or both. The utilization of such a blend eliminates the need for priming a substrate such as a rubber, or a thermoplastic or a thermoset polyolefin. The adhesion promoter resin is a urethane composition containing a blocked polyurethane prepolymer whereas the coating material resin can generally be any compound which has a functional or cosmetic purpose such as a different type of blocked polyurethane, and is generally utilized in a major amount. A particular application of the coating blend compositions of the present invention is to a glass run channel made from, for example, EPDM, as in an automotive door.

REFERENCES:
patent: 4101530 (1978-07-01), Burkhardt et al.
patent: 4267206 (1981-05-01), Johnson
patent: 4606974 (1986-08-01), Thoma et al.
patent: 4631206 (1986-12-01), Mabuchi et al.
patent: 4856502 (1989-08-01), Ersfeld et al.
patent: 4898919 (1990-02-01), Ueda et al.

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