Lens blocking material composition

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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51216LP, C08L 2308, C08L 3104

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active

050969692

ABSTRACT:
A blocking material composition, an essentially homogeneous mixture of

REFERENCES:
patent: 3911185 (1975-10-01), Wright
patent: 3914489 (1975-10-01), Smedberg
patent: 3926878 (1975-12-01), Shimiyu et al.
patent: 4352749 (1982-10-01), Nakabayashi et al.
Petrolite Corporation Brochure-VYBAR.RTM. Polymers-1982, pp. 1 & 8.
Hercules Bulletin R-272A-Tech. Information for the Adhesives Industry-Piccotac.RTM. B Aliphatic Hydrocarbon Resin (9-88), pp. 1-3.
DuPont Brochure-Eluax Resins-6/89-pp. 1-8.
Renfrew-Polythene-1957-p. 242.

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