Hydrophilic silicone elastomers

Details Hydrophilic silicone elastomers Hydrophilic silicone elastomers

2005-08-31

2008-11-18

Gulakowski, Randy (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

Reexamination Certificate

active

07452957

ABSTRACT:
A silicone elastomer having hydrophilic properties is provided. The elastomer is a copolymer that is formed from a crosslinkable silicone composition, the silicone composition comprising an organopolysiloxane component and an ethylenically unsaturated monomer component. For example, the silicone composition may comprise:i) an organopolysiloxane having the following general formula:wherein,each R2is individually selected from unsubstituted and substituted monovalent hydrocarbon groups containing from 1 to 20 carbon atoms;each R3is individually selected from unsubstituted and substituted alkenyl groups containing from 1 to 20 carbon atoms;x≧1; andy≧0 and is an integer that is selected so that the organopolysiloxane contains an average of at least two alkenyl groups per molecule;ii) an ethylenically unsaturated carboxylic acid;iii) a silicon hydride crosslinking agent; andiv) a platinum-based catalyst.

REFERENCES:
patent: 4464506 (1984-08-01), Alberts et al.
patent: 4504645 (1985-03-01), Melancon
patent: 4777063 (1988-10-01), Dubrow et al.
patent: 5397848 (1995-03-01), Yang et al.
patent: 2002/0098364 (2002-07-01), Bernard et al.
patent: 2003/0059537 (2003-03-01), Chilkoti et al.
patent: 2005/0038217 (2005-02-01), Ahn et al.
patent: 2005/0154079 (2005-07-01), Walker et al.
patent: 4420884 (1995-12-01), None
patent: 0776944 (1997-06-01), None
patent: 1132430 (2001-09-01), None
patent: 2004/009675 (2004-01-01), None
patent: 2004/111116 (2005-11-01), None
“The Engineering Tool Box”, www.engineeringtoolbox.com/viscosity-converter-d—413.html.
English Abstract of DE 4420884 published Dec. 21, 1995.
International Search Report mailed Oct. 10, 2006.
Article—Surface-Directed, Graft Polymerization within Microfluidic Channels, Hu et al., Analytical Chemistry, vol. 76, No. 7, Apr. 1, 2004, pp. 1865-1870.
Article—Surface Modification of Poly(dimethylsiloxane)Microfluidic Devices by Ultraviolet Grafting, Hu et al., Analytical Chemistry, vol. 74, No. 16, Aug. 15, 2002, pp. 4117-4123.
Product Information aboutDow Corning®brand Silicone Encapsulants from Dow Corning Corporation, 2005, 8 pages.
Product Information about High Technology Silicone Materials—SYLGARD® 184 Silicone Elastomer, Base & Curing Agent from Dow Corning Corporation, 1991, 6 pages.
Dow Corning Corporation Material Safety Data Sheet on SYLGARD® Silicone Elastomer Base (Base Information), 2001, 6 pages.
Dow Corning Cororation Material Safety Data Sheet on SYLGARD® Silicone Elastomer Curing Agent (Curing Agent Information), 2002, 7 pages.

Affiliated with

Also associated with

Rating

Hydrophilic silicone elastomers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydrophilic silicone elastomers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydrophilic silicone elastomers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4050108