Eraser

Details Eraser Eraser

1988-12-09

1990-04-17

Lieberman, Allan M.

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...

524413, 524423, 524426, 524427, 524430, 524445, 524448, 524451, 524487, 524505, 524525, 525 98, 525240, C08K 300, C08L 2306, C08L 2312, C08L 5302

Patent

active

049181300

ABSTRACT:
An eraser comprises a styrene thermoplastic elastomer as a matrix with a hydrocarbon resin and a polyolefin included therein. The styrene thermoplastic elastomer is selected from the group which consists of styrene-butadiene copolymers, styrene-isoprene copolymers, styrene-ethylene-butylene copolymers and styrene-ethylene-propylene copolymers, and the hydrocarbon is a terpene resin or hydrogenated terpene resin, and the polyolefin is polyethylene or polypropylene.

REFERENCES:
patent: 4305990 (1981-12-01), Kelly
patent: 4374225 (1983-02-01), Kawakuba et al.
patent: 4386188 (1983-05-01), Grancio et al.
patent: 4418123 (1983-11-01), Bonnelle et al.
patent: 4578920 (1986-03-01), Handl
patent: 4721739 (1988-01-01), Brenneman et al.
patent: 4743636 (1988-05-01), Bersano
patent: 4753989 (1988-06-01), Hudson Jr.
patent: 4761451 (1988-08-01), Moteki et al.

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