Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1977-04-05
1979-11-06
Pertilla, Theodore E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525122, 525529, 336 96, 428377, 428418, C08L 6300
Patent
active
041735935
ABSTRACT:
An epoxy-styrene, solventless resin impregnating varnish, having an atmospheric catalyzed pot life at room temperature of at least 45 days, is made by mixing: (1) the product of the reaction of (a) 1 part of an epoxy resin mixture, comprising solid epoxy resin and liquid epoxy resin wherein the weight ratio of solid epoxy: liquid epoxy is between 1:1 to 1:10; with (b) between about 0.01 part to 0.06 part of maleic anhydride and (c) a catalyst under such conditions that the epoxy diester formed has an acid number of between about 0.5 to 3.0; with (2) a coreactive vinyl monomer; and between about 0.0003 part to 0.004 part of a room temperature stabilizer; (3) between about 0.3 part to 1.2 part of a polycarboxylic anhydride, which is soluble in the mixture of (1) and (2), and an amount of free radical catalyst that is effective to provide a catalytic effect on the impregnating varnish and to cure it at temperatures of over about 85.degree. C., and with (4) between 0.0005 part to 0.005 part of a metal acetylacetonate, selected from the group consisting of chromium (III) acetylacetonate, manganese (III) acetylacetonate, ferric (iron III) acetylacetonate, zinc (II) acetylacetonate, aluminum (III) acetylacetonate, sodium (I) acetylacetonate, uranyl (VI) acetylacetonate, and mixtures thereof, acting as latent accelerator.
REFERENCES:
patent: 3624032 (1971-11-01), Miyashiro et al.
patent: 3919348 (1975-11-01), Foster et al.
patent: 4038339 (1977-07-01), Foster
Kauffman Robert N.
Smith James D. B.
Cillo D. P.
Pertilla Theodore E.
Westinghouse Electric Corp.
LandOfFree
Metal acetylacetonate latent accelerators for an epoxy-styrene r does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Metal acetylacetonate latent accelerators for an epoxy-styrene r, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal acetylacetonate latent accelerators for an epoxy-styrene r will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-462054