Title:
DRY SILICONE GELS AND THEIR METHODS OF MAKING USING THIOL-ENE CHEMISTRY
Document Type and Number:
WIPO Patent Application WO/2013/160252
Kind Code:
A3
Abstract:
Methods and systems are provided for a dry silicone gel. The dry silicone gel comprises a base polymer having a vinyl-silicone group and a crosslinker having thiol groups. The dry silicone gel may be made without the use of a catalyst by reacting the base polymer and crosslinker in the presence of a photo or thermal initiator. In some embodiments, the gel also comprises a chain extender having thiol groups. In certain embodiments, the dry silicone gel may comprise: (1) a hardness between 80 g and 300 g, (2) a stress relaxation between 20% and 65% when subjected to a deformation of 50% of the original size of the gel, (3) a compression set between 4% and 20% after 50% strain has been applied to the gel for 1000 hours at 70°C, and/or (4) less than 10% oil bleed out under compression of 1.2 atm after 60 days at 60°C.
Inventors:
VAN DEN BERG OTTO (BE)
BERGHMANS STEPHANE (BE)
DU PREZ FILIP (BE)
BERGHMANS STEPHANE (BE)
DU PREZ FILIP (BE)
Application Number:
PCT/EP2013/058298
Publication Date:
June 26, 2014
Filing Date:
April 22, 2013
Export Citation:
Assignee:
TYCO ELECTRONICS RAYCHEM BVBA (BE)
International Classes:
C08G77/392; C08L83/04; G02B6/38
Domestic Patent References:
| WO2011136170A1 | 2011-11-03 |
Foreign References:
| US20040209972A1 | 2004-10-21 | |||
| US4284539A | 1981-08-18 |
Attorney, Agent or Firm:
HEINZ-SCHAEFER, Marion (Faraday RoadDorcan, Swindon Wiltshire SN3 5HH, GB)
Download PDF:
Previous Patent: METHOD AND ARRANGEMENT FOR DETERMINING THE OCCUPANCY OF A RAIL VEHICLE
Next Patent: PROCESS FOR CONVERTING A SOLID BIOMASS MATERIAL
Next Patent: PROCESS FOR CONVERTING A SOLID BIOMASS MATERIAL