Substantially amorphous polyolefins useful as pressure-sensitive

Details Substantially amorphous polyolefins useful as pressure-sensitive Substantially amorphous polyolefins useful as pressure-sensitive

1978-11-02

1980-01-29

Hamrock, William F.

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

Synthetic resins

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

525371, 528481, C08F 800, C08F 842, C08F 850

Patent

active

041862589

ABSTRACT:
The invention relates to a process for the treatment of substantially amorphous polyolefins to provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. These permanently tacky amorphous polyolefin homo- and copolymers, as well as blends of such amorphous polyolefins with crystalline polyolefins containing up to 20 weight percent crystalline polyolefin, are novel pressure-sensitive adhesives.

REFERENCES:
patent: 3081288 (1963-03-01), Edmonds
patent: 3341621 (1967-09-01), Hagemeyer et al.
patent: 3562788 (1971-02-01), Weemes et al.
patent: 3629373 (1971-12-01), Embree
patent: 4143858 (1979-03-01), Schmidt et al.

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