Isocyanate resin compositions and hot melt and pressure sensitiv

Details Isocyanate resin compositions and hot melt and pressure sensitiv Isocyanate resin compositions and hot melt and pressure sensitiv

1994-09-07

1997-05-27

Warzel, Mark L.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 64, 525 71, 525 77, 525 78, 525 79, 525 80, C08L 5100, C08L 7504

Patent

active

056333170

ABSTRACT:
A resin composition containing graft copolymer having at least one isocyanate group and 10,000 to 20,000 number-average molecular weight or high-molecular-weight polymer having at least one isocyanate group and 10,000 to 200,000 number-average molecular weight, and low-molecular-weight polymer having or not having an isocyanate group and 500 to 8,000 number-average molecular weight. This resin composition has tackiness at ordinary temperature, and long pot life. It can be used for reactive hot melt type adhesives (which can omit hot press process), reactive hot melt type pressure-sensitive adhesives, or coating material.

REFERENCES:
patent: 3842059 (1974-10-01), Milkovich et al.
patent: 3879494 (1975-04-01), Milkovich et al.
patent: 4695608 (1987-09-01), Eugler et al.
patent: 4788256 (1988-11-01), Aoki et al.
patent: 4816537 (1989-03-01), Tsuboniwa et al.
patent: 4990583 (1991-02-01), Wamprecht et al.
patent: 4996283 (1991-02-01), Greco et al.
patent: 5034453 (1991-07-01), Takada et al.
patent: 5057366 (1991-10-01), Husman et al.

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