Liquid thermosetting compositions containing hemiformals of phen

Details Liquid thermosetting compositions containing hemiformals of phen Liquid thermosetting compositions containing hemiformals of phen

1982-01-19

1984-02-21

Schain, Howard E.

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

Synthetic resins

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

425543, 525462, 525465, 525480, 525488, 525497, 525498, 525500, 525501, 525502, 525503, 525521, 528139, 528140, 528165, 528254, C08G 6110, C08G 6114, C08G 6706, C08G 6900

Patent

active

044331193

ABSTRACT:
There are described liquid compositions of a hemiformal of phenol and/or a hemiformal of a methylolated phenol with a miscible polymers such as phenol-formaldehyde resoles, phenol-formaldehyde, novolacs, aromatic polyesters, unsaturated polyesters, poly(aryl-ethers), aromatic polycarbonates urea-formaldehyde resins, or melamine-formaldehyde resins. The compositions are useful for forming thermoset plastic materials.

REFERENCES:
patent: 2609352 (1952-09-01), Kvalnes
patent: 2894931 (1959-07-01), Somerville et al.
patent: 3062783 (1962-11-01), Gray et al.
patent: 3485797 (1969-12-01), Robins
patent: 3624035 (1971-11-01), von Portatius
patent: 3959433 (1976-05-01), Sauers
patent: 4022942 (1977-05-01), Anderson et al.
Strupinskaya et al., Plast. Massy.,_ 1968, pp. 18-20, Translation (pp. 21-23) Supplied by Applicant.
Walker, Formaldehyde, 3rd Edition, Reinhold Publishing Corp., New York (1964), pp. 305-306.
Bakeland and Bender "Industrial and Engineering Chemistry," vol. 17, No. 3, pp. 225-237 (1925).

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