http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1459842-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e5302e08e56037ff7bc5c9b6fcc29f9 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L61-12 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D157-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D133-06 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L61-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D161-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D157-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D161-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D133-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D133-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-00 |
| filingDate | 1974-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1459842-A |
| titleOfInvention | Aqueous primer composition |
| abstract | 1459842 Aqueous synthetic resin primer composition UNION CARBIDE CORP 29 April 1974 [30 April 1973] 17787/74 Headings C3R and C3P A metal primer composition comprises an aqueous blend of: (a) an acrylate copolymer resin latex wherein the copolymer contains at least 2 wt. per cent of at least one polymerized monomer that contains a functional group capable of reacting with a methylol group; and (b) an aqueous dispersion of a resole comprising the alkaline-catalyzed condensation product of 2,2-bis(4-hydroxyphenyl)- propane and HCHO, wherein the resole has a weight average M.Wt. of from 300 to 5000, and comprises particles substantially all of which have diameters of less than 60 microns, wherein the acrylate copolymer is an alkyl acrylate or methacrylate copolymer, and the functional group is an amino, amido, ureido, carboxy, alcoholic hydroxyl, e.g. methylol, methoxymethyl or epoxy group. The composition preferably contains 2-60 wt. per cent resole and 40-98 wt. per cent acrylate copolymer, based on the weight of the resole and acrylate copolymer on a solids basis, and may additionally comprise up to 60% wt. of a pigment or filler. In a preferred embodiment the primer composition is made by condensing a mixture of bisphenol A and from 0-50 wt. per cent of a difunctional monohydric phenol, e.g. a parasubstituted phenol, with 1-3 moles of HCHO in the presence of 0À01-1 mole of an alkaline catalyst per mole of phenol mixture, adding to the condensation product obtained a mixture of from 0À5-12 p.b.w. per 100 p.b.w. of phenol mixture a mixture of gum arabic and one or more polysaccharide gums having mannose and galactose units or D-mannuronic and L-guluronic acid units, wherein the weight ratio of gum arabic to the other gums is from 0À5 : 1 to 20 : 1, adjusting the pH of the resultant dispersion if necessary to 3-7À5, and optionally further condensing the resin, and then blending the aqueous dispersion with the acrylate copolymer resin latex. In the examples primer compositions are prepared from (i) a latex copolymer of styrene, ethyl acrylate, acrylic acid and optionally neopentyl glycol diacrylate, and (ii) an aqueous phenolic resin dispersion which is either of a bisphenol A-HCHO resin or of a bisphenol-A/t-butyl phenol/HCHO resin each prepared in the presence of gum arabic and "Jaguar" gum (R.T.M.), and (iii) CH 3 COO(CH 2 CH 2 O) 2 CH 2 CH 3 and optionally TiO 2 pigment, zinc phosphate and a defoamer. The primers are cast on to phosphated steel and cured and then overcoated with a white pigmented thermosetting acrylic resin and rebaked. |
| priorityDate | 1973-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.