http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0562861-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cff62ee19588f053fe1f229df4e6c756 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F220-382 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-041 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F2-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G18-67 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F220-38 |
| filingDate | 1993-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c15063da04a5c3b6ce8b6412ca1632ec http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b9843836ac96f7f8161fdeb99b9c6848 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e3e0fd4bea12d073d8b927a78f6205f8 |
| publicationDate | 1993-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0562861-A1 |
| titleOfInvention | Optical materials with a high refractive index and method for producing the same |
| abstract | An optical material with a high refractive index comprising a resin which is obtainable by polymerization and curing of a composition comprising the following components (A), (B) and (C): n component (A): a sulfur-containing (meth)acrylic monomer represented by the following formula [I], or a mixture of the monomer [I] and a sulfur-containing (meth)acrylic monomer represented by the following formula [II]:n n in each of which formulas, R¹ represents a hydrogen atom or a methyl group, R² and R³ independently represent a hydrocarbyl group of 1 to 12 carbon atoms, X represents a halogen atom except fluorine, and n represents 0 or an integer of 1 to 4, provided that those groups which are in plurality may be the same or different, n the weight ratio of the compound [I]/the compound [II] being from 10/0 to 1/9; n component (B): a hydroxy(meth)acrylic monomer represented by the following formula [III]:n n wherein R⁵ represents a hydrogen atom or a methyl group, R⁴ represents a hydrocarbyl group of 1 to 20 carbon atoms which may or may not contain an ether oxygen atom, Y represents a halogen atom except fluorine, and m represents 0 or an integer of 1 or 2, provided that those groups which are in plurality may be the same or different, and p is 1 or 2, n the weight ratio of the component (A)/the component (B) being from 95/5 to 50/50; and n component (C): an isocyanate compound having a plurality of -NCO groups, n the ratio (-NCO/-OH) of the number of -NCO group in the component (C) to the total number of -OH group in the components (A) and (B) being from 0.2 to 3. n The above material for lenses has a low specific gravity and improved refractive index, transparency and impact resistance. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0606905-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0019246-A3 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0606905-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0019246-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2783829-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6248285-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-747007-B2 |
| priorityDate | 1992-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 253.