http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1251846-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G18-4661 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G63-6854 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01B3-42 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01B3-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-685 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G63-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G73-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D167-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G8-00 |
| filingDate | 1969-03-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1971-11-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1251846-A |
| abstract | 1,251,846. Polyesters from tris(2-hydroxyalkyl)isocyanate homopolymers. ALLIED CHEMICAL CORP. 24 March, 1969 [25 March, 1968; 18 Feb., 1969], No. 15404/69. Headings C3P and C3R. The invention comprises polyesters of a polycarboxylic acid and a polyol comprising a homopolymer of a tris(2-hydroxylalkyl)isocyanurate wherein each alkyl group contains at least two carbon atoms. The preferred isocyanurate is tris(2-hydroxyethyl)isocyanurate and the homopolymer is one which has been made by dissolving the isocyanurate and an acidic etherification catalyst in solvent water and heating the mixture at 150-250‹ C. and terminating the reaction before more than 0.75 mol water of condensation per mol of isocyanurate has been removed. The homopolymer may be partially replaced by another polyol, especially glycols of the formula H(OR) n OH where R is alkylene and n is 1-10 when the acid is partially esterified by the homopolymer first. Polycarboxylic acids specified are the phthalic acids; trimellitic, fumaric, succinic adipic, sebacic azelaic, maleic, tetrahydrophthalic, acrylic, substituted acrylic, itaconic, endo-bis-5-norbornene-2,3-dicarboxylic and methyl bicyclo(2,2,1)-heptene-2,3-dicarboxylic acids. Terephthalic acid is preferred. The polyesters may be oil-modified. In Example III a polyester according to the invention, is modified with coconut oil, to produce a modified resin which is used to make coating compositions in admixture with (1) butylated melamine -formaldehyde resin and (2) a phenolicformaldehyde resin. The polyesters may be modified by incorporating into them, a di- or polyisocyanate which is initially blocked, by reaction at 650‹ to 800‹ C., to produce a polyurethane copolymer. The polyesters may also be modified by reaction with a carboxyl compound containing a five membered imide ring, to produce a polyester-imide copolymer. In Example IV, the imide used, is one obtained by reacting trimellitic anhydride with 4,41-diaminodiphenyl. methane. When the polyesters of the invention contain unsaturation derived from an unsaturated acid, they may be cross-linked with an unsaturated monomer. In Example V such a polyester containing unsaturation derived from maleic acid, is cross-linked with 30 parts styrene to 70 parts resin, with a benzoyl peroxide initiator. |
| priorityDate | 1968-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.