Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1980-06-09
1981-04-07
Foelak, Morton
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
260 37N, 521154, 528 44, 528 67, 528 69, 528 73, C08F28300
Patent
active
042606969
ABSTRACT:
Organic polyisocyanates are reacted chemically with aldehyde-broken down alkali metal cellulose silicate polymers to produce polyurethane products.
REFERENCES:
patent: 4153768 (1979-05-01), Blount
patent: 4185147 (1980-01-01), Blount
patent: 4226982 (1980-10-01), Blount
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