http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-604476-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_08e5126e16ad1c7aae67ba760e92e943 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-3033 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30 |
| filingDate | 1945-11-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1948-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-604476-A |
| titleOfInvention | Improvements in or relating to laminated light transmitting material |
| abstract | 604,476. Compound transparent sheets. INTERNATIONAL POLAROID CORPORATION: Nov. 1, 1945, No. 29000. Convention date. Nov 6, 1944. [Class 140] [Also in Group XX] A light-polarizing element such as a head-lamp lens includes a layer of polarizing material 22 and a protective cover 25 of glass subdivided into contiguous component pieces, 26, 30, each bonded to the polarizing layer by transparent adhesive 24. A further layer of glass 18 and a lens 12 may be secured by means of adhesive layers 16 and 20. The polarizing layer may be polyvinyl alcohol partly dehydrated by heating as described in Specification 548,759. The adhesive may be a polvvinyl acetal such as the butyral, or an acrylic or methacrylic resin The layer 25 may be subdivided after adhesion to the polarizing layer, and the cracks between the adjacent component pieces may be filled with opaque or transparent adhesive, e.g. butyl methacrylate polymerized in situ. Layer 18 may be similarly subdivided. |
| priorityDate | 1944-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 15.