Phenolic resins for reinforced composites

Details Phenolic resins for reinforced composites Phenolic resins for reinforced composites

1993-04-29

1994-03-01

Hoke, Veronica P.

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...

428117, 4283126, 428436, 528138, 524493, 524494, 524701, C08K 714, C08K 338

Patent

active

052908437

ABSTRACT:
The present invention is directed to a phenolic resin composition useful for preparing a binder for reinforced composites, to a binder for reinforced composites made using the phenolic resin composition, and to a reinforced composite made using the binder. The phenolic resin composition of the present invention contains an aqueous mixture of: (a) a resole formed by reacting phenol with formaldehyde in the presence of an ortho directing catalyst at a mole ratio of formaldehyde to phenol ranging from about 0.7:1 to about 3:1 and (b) a water-soluble borate, wherein the composition contains at least about 0.02 equivalent of the ortho directing catalyst per mole of phenol, has a pH at least about 7 and contains from about 0.02 to about 0.5 mole borate per mole of phenol. When the ortho directing catalyst has a cation that forms an insoluble material with a borate anion, the cation is removed after the resole is formed and prior to adding the water-soluble borate.

REFERENCES:
patent: 1999715 (1935-04-01), Billings et al.
patent: 2606888 (1952-08-01), Williams et al.
patent: 2748101 (1956-05-01), Shappell
patent: 2864782 (1958-12-01), Mitchell
patent: 2889241 (1959-06-01), Gregory et al.
patent: 2941904 (1960-06-01), Stalego
patent: 2990307 (1961-06-01), Stalego
patent: 3218279 (1965-11-01), Stalego
patent: 3332911 (1967-07-01), Huck
patent: 3510446 (1970-05-01), Junger et al.
patent: 3616179 (1971-10-01), McCombs et al.
patent: 3839236 (1974-10-01), Foley et al.
patent: 3846225 (1974-11-01), Stalego
patent: 3875089 (1975-04-01), Hofel et al.
patent: 3956204 (1976-05-01), Higginbottom
patent: 4043970 (1977-08-01), Dahms
patent: 4045398 (1977-08-01), Dahms
patent: 4120847 (1978-10-01), Culbertson
patent: 4122045 (1978-10-01), Garrett et al.
patent: 4122054 (1978-10-01), Culbertson
patent: 4123414 (1978-10-01), Milette
patent: 4157324 (1979-06-01), Culbertson
patent: 4176105 (1979-11-01), Miedaner
patent: 4195458 (1980-04-01), Hoppe et al.
patent: 4235989 (1980-11-01), Leong et al.
patent: 4272403 (1981-06-01), Meyer et al.
patent: 4299947 (1981-11-01), Nanjo et al.
patent: 4323667 (1982-04-01), Meyer et al.
patent: 4403076 (1983-09-01), McDonald
patent: 4480068 (1984-10-01), Santos et al.
patent: 4578448 (1986-03-01), Brode et al.
patent: 4584329 (1986-04-01), Gardziella et al.
patent: 4820576 (1989-04-01), Duryea
patent: 4824896 (1989-04-01), Clarke et al.
patent: 4917742 (1990-04-01), Watanabe et al.
patent: 4977209 (1990-12-01), Barker et al.
patent: 4985489 (1991-01-01), Barker et al.
patent: 5004789 (1991-04-01), Boinot et al.
patent: 5019618 (1991-05-01), Chiu
patent: 5032431 (1991-07-01), Conner et al.
John W. Lyons, "The Chemistry and Uses of Fire Retardants", Wiley-Interscience, pp. 80-83 (Scientific Library, U.S. Patent Office (Jan. 31, 1972)).
Military Specification--Resin, Phenolic, Laminating, MIL-R-9299C, (Dec. 3, 1968).
Chemical Abstracts--CA81(24):153931b.
Chemical Abstract: CA81(6):27526k.
Chemical Abstract: CA73(4):15919n.
Chemical Abstract: CA104(4):20140q.

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