25067-01-0

Reference

Aqueous emulsion copolymers of vinyl alkanoates, alkyl, acrylates, and acrylic modified alkyds

Aqueous emulsion copolymers of vinyl alkanoates, alkyl, acrylates, and acrylic modified alkyds. Kuzma, Edward J. (Celanese Corp., USA). U.S. US 4010126 1 Mar 1977, 9 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08L094-00. NCL: 260022000CB. APPLICATION: US 75-567212 11 Apr 1975. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Modifying alkyd resins with acrylic polymers, interpolymg. with butyl acrylate-vinyl acetate copolymer (I) [25067-01-0], and compounding with surfactants, pigment, additives, and H2O gave semi-gloss and flat paints giving good adhesion on chalked surfaces. Thus, an emulsion of H2O 135.27, surfactants 6.72, glycols 108. 62386-65-6 and 38622-62-7 which are cas registry numbers of substances are two of reagents here.11, additives 5.48, pigments 292.91, and 46% interpolymer dispersion (obtained by heating acrylic acid-ethyl acrylate-hydroxymethyl methacrylate-methyl methacrylate copolymer [62386-65-6]-modified alkyd resin with I) 535.35 lb was applied on southern pine panels, and exposed to the weather for 1 year to give a specimen with 4 gloss blistering scale. .

High solids copolymer latexes with low viscosity

High solids copolymer latexes with low viscosity. Heimberg, Manfred (National Distillers and Chemical Corp., USA). U.S. US 4409355 A 11 Oct 1983, 11 pp. Cont.-in-part of U.S. Ser. No. 294,021. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08L033-08; C08L033-10. NCL: 524458000. APPLICATION: US 82-344234 29 Jan 1982. PRIORITY: US 80-128603 10 Mar 1980; US 81-294021 18 Aug 1981. DOCUMENT TYPE: Patent CA Section: 37 (Plastics Manufacture and Processing) Section cross-reference(s): 42 A copolymer latex having solids content 360 wt.% and Brookfield viscosity ￡15,000 cP is prepd. by polymg. in 2 stages 310 wt.% vinyl acetate (I) and an acrylate ester, a methacrylate ester, and/or a vinyl ester of a-branched satd. monocarboxylic acid monomer. Thus, a mixt. of H2O 420, polyvinylpyrrolidone 2.5, Triton X 405 40, Triton QS 9 12.5, and I 40 parts and an amt. of NaOH to give pH = 10 was heated at 60°. (NH4)2S2O8 (1.65 parts) in 10 parts H2O was added. Addnl. 320 parts I was added at 72-80° over 65 min. A mixt. of 360 parts I and 150 parts Bu acrylate was added over 120 min. (NH4)2S2O8 (0.2 parts) was added. The mixt. was heated at 80° for 30 min to give a copolymer [25067-01-0] latex having solids content 65.2% and Brookfield viscosity 2700 cP, compared with 69.6% and 50,000 cP resp., for a copolymer latex prepd. from a single-stage addn. of I.