Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1982-01-20
1983-03-15
Nielsen, Earl A.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525114, 525119, 525523, 525533, 5253269, 526260, 528 73, 528111, 528117, 528118, 528365, 528369, 528418, C08G 5950, C08G 5942
Patent
active
043768440
ABSTRACT:
Resin-forming polyepoxides are mixed with polyoxazolidinyl compounds or polymers containing pendant oxazolidinyl groups in which the carbon atom in the 2-position of the heterocyclic ring is substituted with saturated hydrocarbon groups, such as dialkyl, or with an alkylene group forming a saturated ring with the carbon atom in the 2-position of the oxazolidinyl ring to form, in the absence of water, a stable composition which can be stored in closed containers for months without undergoing gelation. When such compositions are spread into films and the films exposed to moisture at ambient temperature, e.g., to ambient air having a relative humidity of at least 20% and temperature of about 15.degree. to 25.degree. C., the polymer serves to react with and cure the polyepoxide.
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Emmons William D.
Feely Wayne E.
Johnson Lester E.
Nielsen Earl A.
Rohm and Haas Company
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