Adhesive composition for skin adhesion and bandage applications

Details Adhesive composition for skin adhesion and bandage applications Adhesive composition for skin adhesion and bandage applications

1997-09-30

1999-04-06

Mullis, Jeffrey C.

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

Synthetic resins

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

525 98, 525 99, C08L 5302

Patent

active

058919570

ABSTRACT:
A pressure sensitive adhesive composition for skin adhesion and bandage applications which comprises (a) 100 parts by weight of a styrene-isoprene-styrene triblock or multiarm copolymer which has a coupling efficiency of 20 to 50%, an overall absolute arm molecular weight of 33,000 to 100,000, a polystyrene content of 18 to 30%, and a polystyrene block weight average molecular weight of 11,000 to 20,000, and (b) from 100 to 400 parts by weight of a styrene-isoprene diblock copolymer which has an overall absolute molecular weight of 20,000 to 40,000, a polystyrene content of 10 to 25%, and a polystyrene block weight average molecular weight of 4000 to 7000.

REFERENCES:
patent: 4080348 (1978-03-01), Korpman
patent: 4136071 (1979-01-01), Korpman
patent: 5039750 (1991-08-01), Miller et al.
patent: 5274036 (1993-12-01), Korpman et al.
patent: 5462538 (1995-10-01), Korpman
European Search Report of 3 Feb. 1998.

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