http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-984895-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c91ae94346fec2b319e8775fd10ff867 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J2329-14 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-03 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-05 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-03 |
| filingDate | 1961-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1965-03-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-984895-A |
| titleOfInvention | Improvements in aqueous resin dispersions |
| abstract | A process for the preparation of stable aqueous polyvinyl acetal dispersions comprises agitating the mixture comprising 100 parts by weight of a polyvinyl acetal containing not more than 30% by weight of hydroxyl groups calculated as polyvinyl alcohol, not over 30% by weight ester groups calculated as polyvinyl ester and the balance substantially acetal groups, and 0.5 to 30 parts by weight of an emulsifier with sufficient water to form a water-in-resin dispersion while heating the mixture up to at least the second order transition temperature of the resinous phase, agitating and heating said mixture to form a water-in-resin dispersion, and then with continued agitation and maintenance of the temperature of the mixture up to at least the second order transition temperature of the resinous phase adding sufficient water to cause the water-in-resin dispersion to invert to a resin-in-water dispersion. The second order transition temperature is defined as the temperature at which the resin has a modulus of elasticity of 1 x 104 p.s.i., and the resin or resinous phase may include a plasticizer up to the amount of 5 parts. The polyvinyl acetal may be the reaction product of a partially hydrolysed polyvinyl ester, e.g. acetate, with butyraldehyde, formaldehyde, acetaldehyde, propionaldehyde or benzaldehyde. The plasticizer may be castor oil, dibutoxyethyl phthalate, diethyl phthalate, dibutyl sebacate, dibutyl phthalate, butyl ricinoleate, triethylene glycol dihexoate, trioctyl phosphate, triethylene glycol ester of coconut oil fatty acids, phenyl ethers of polyethylene oxide resin derivatives and oil modified sebacic alkyd resins. The emulsifying agent may be a sodium, potassium, lithium, rubidium, caesium, quaternary ammonium, triethanolamine or morpholine salt of stearic, oleic, ricinoleic, palmitic, lauric, dodecyl benzene sulphonic or abietic acid. The dispersions may also contain fillers and modifying agents such as starches, clays and natural gums. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022026325-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2159521-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6121349-A |
| priorityDate | 1960-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 76.