http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1066821-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_445a797690bdb3709f7c1a0a64853ba2 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F5-022 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G59-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G59-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F5-02 |
| filingDate | 1963-05-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aa4a407581e187273c9db909900e3899 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d6bba9f2e7ade25a0f90909645de995 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8f8274b7755f4e828c9d6fecbd551e9d |
| publicationDate | 1967-04-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1066821-A |
| titleOfInvention | Borontrifluoride-ester complexes as hardening agents |
| abstract | The invention comprises a complex of boron trifluoride with an ester having the general formula R1(COOR2)n wherein R1 represents any aliphatic or alicyclic radical or an aromatic radical containing a benzene ring which does not contain a second esterified carboxyl group directly attached thereto, R2 represents a tetrahydrofurfuryl radical and n is a positive integer. The esters are conveniently prepared by reacting tetrahydrofurfuryl alcohol with an organic carboxylic acid, or by reacting tetrahydrofurfuryl chloride with a lower aliphatic ester of an organic carboxylic acid, such as the methyl or ethyl ester. Examples of suitable esters are given. The complex can be made by mixing, at room temperature, a tetrahydrofurfuryl ester and a complex of boron trifluoride with an ether until a homogeneous mixture is obtained, or by bubbling BF3 gas through the liquid ester at room temperature. Examples describe the preparation of boron trifluoride complexes of maleic, ortho-chlorobenzoic, sebacic, acetic, furoic, benzoic, p-isocyanatobenzoic, and p-nitrophenylacetic acid and nadic methyl anhydride.ALSO:An adhesive composition comprises in admixture an epoxide resin and a hardening agent which is a complex of boron trifluoride with an ester of the formula R1(COOR2)n, wherein R1\t represents any aliphatic or alicyclic radical or an aromatic radical containing a benzene ring which does not contain a second esterified carboxyl group directly attached thereto, R2 represents a tetrahydrofurfuryl radical and n is a positive integer. Examples of epoxide resins and resins based on bisphenol A and epichlorhydrin, resins based on phenolic compounds and formaldehyde, and the polyalkylene-oxide resins. The setting time of the adhesive can be increased by adding a modifying agent to the resin or the hardening agent before these are mixed. Preferably, an organic amine, e.g. an aromatic amine is used, the amount of amine being from 0.5 to 10% based on the weight of resin. Suitable plasticizers which can be used are a chlorinated copolymer of styrene with butadiene, or polypropylene glycol. |
| priorityDate | 1964-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.