http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1342852-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac93f643b44e958763fd1234fe359e3f |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08L33-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S260-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S260-15 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D133-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D133-062 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D133-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D157-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D133-14 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08L33-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D157-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F246-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D5-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D133-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D133-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D133-06 |
| filingDate | 1972-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1974-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1342852-A |
| titleOfInvention | Self- cross-link powder coating compositions |
| abstract | 1342852 Curable powder coating compositions; copolymers FORD MOTOR CO Ltd 1 June 1972 [16 Aug 1971 (3)] 25645/72 Heading C3P [Also in Division B2] A self-curable powder coating composition comprises (A) a copolymer derived from (a) approximately stoichiometric amounts of two ethylenic monomers each containing a functional group capable of reacting with the functional group of the other and (b) one or more other ethylenic monomers not containing a reactive functional group, the copolymer having a Tg of 40-90 C. and a number average molecular weight M n of 2000-15,000, and (B) at least 0À05 wt. per cent of a flow control agent which is a polymer having an M n of at least 1000 and a Tg at least 50 C. below that of (A). The said two monomers in (a) may contain: (1) epoxy and anhydride groups, specific monomers being glycidyl acrylate or methacrylate and allyl glycidyl ether arid the anhydrides of maleic, itaconic, citraconic, dodecyl succinic, dichloromaleic and tetrahydrophthalic acids; (2) epoxy and carboxyl groups, specific monomers being glycidyl acrylate or methacrylate and allyl glycidyl ether, and acrylic, methacrylic acid or itaconic acids or (3) hydroxyl and carboxyl groups, specific monomers being 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, 2-hydroxyethyl acrylate, 2-hydroxy, propyl acrylate, or N-methylol acrylamide, and the acids specified above. Examples of the further monomer(s) (b) are methyl methacrylate, butyl methacrylate, butyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, ethyl methacrylate, acrylonitrile, methacrylonitrile, methacrylamide, lauryl methacrylate, cyclohexyl methacrylate, styrene, and alpha-methyl styrene. Examples of the flow control agent are polylauryl acrylate, polybutyl acrylate, poly- (2-ethylhexyl)acrylate, polylauryl methacrylate, poly(2-ethyl hexyl)methacrylate, poly isododecyl methacrylate and esters of polyethylene glycols with fluorinated fatty acids, e.g. perfluoro octanoic acid. A curing catalyst for the reaction of the two groups may be present, a long list being given. Those exemplified are tetrabutyl ammonium bromide or chloride, tetraethyl- or tetramethyl ammonium chloride, trimethyl benzyl ammonium chloride, ethyl benzyl (ethyleneoxy)phosphate and dibutyl poly(ethyleneoxy)phosphate. One or more fillers or pigments may also be present. Examples 1-39 describe the preparation of copolymers of various combinations of monomers selected from those listed, and their formulation into coating powders, which are baked on to substrates such as steel, aluminium, copper, bronze, zinc, brass and glass. |
| priorityDate | 1971-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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