US 7,344,568 B2
Tear resistant gels, composites, and liner articles
John Y. Chen, Hillsborough, Calif. (US)
Assigned to Applied Elastomerics, Inc., South San Francisco, Calif. (US)
Filed on Apr. 21, 2003, as Appl. No. 10/420,492.
Application 10/420492 is a continuation in part of application No. 10/334542, filed on Dec. 31, 2002, granted, now 7,159,259.
Application 10/334542 is a continuation in part of application No. 10/299073, filed on Nov. 18, 2002.
Application 10/299073 is a continuation in part of application No. 10/273828, filed on Oct. 17, 2002, granted, now 6,909,220.
Application 10/273828 is a continuation in part of application No. 10/199364, filed on Jul. 20, 2002, granted, now 6,794,440.
Application 10/199364 is a continuation in part of application No. 10/199363, filed on Jul. 20, 2002.
Application 10/199363 is a continuation in part of application No. 10/199362, filed on Jul. 20, 2002.
Application 10/199362 is a continuation in part of application No. 10/199361, filed on Jul. 20, 2002.
Application 10/199361 is a continuation in part of application No. 09/896047, filed on Jun. 30, 2001.
Application 09/896047 is a continuation in part of application No. 09/721213, filed on Nov. 21, 2000, granted, now 6,867,253.
Application 09/721213 is a continuation in part of application No. 09/517230, filed on Mar. 02, 2000, abandoned.
Application 09/517230 is a continuation in part of application No. 09/412886, filed on Oct. 05, 1999, abandoned.
Application 09/412886 is a continuation in part of application No. 09/285809, filed on Apr. 01, 1999, abandoned.
Application 09/285809 is a continuation in part of application No. 09/274498, filed on Mar. 28, 1999, granted, now 6,420,475.
Application 09/274498 is a continuation in part of application No. 09/130545, filed on Aug. 08, 1998, granted, now 6,627,275.
Application 09/130545 is a continuation in part of application No. 08/984459, filed on Dec. 03, 1997, granted, now 6,324,703.
Application 08/984459 is a continuation in part of application No. PCT/US97/17534, filed on Sep. 30, 1997.
Application PCT/US97/17534 is a continuation in part of application No. 08/909487, filed on Aug. 12, 1997, granted, now 6,050,871.
Application 08/909487 is a continuation in part of application No. 08/863794, filed on May 27, 1997, granted, now 6,117,176.
Application 08/863794 is a continuation in part of application No. 08/719817, filed on Sep. 30, 1996, granted, now 6,148,830.
Application 08/719817 is a continuation in part of application No. 08/665343, filed on Jun. 17, 1996.
Application 08/665343 is a continuation in part of application No. 08/612586, filed on Mar. 08, 1996, granted, now 6,552,109.
Application 08/612586 is a continuation in part of application No. 08/581191, filed on Dec. 29, 1995, granted, now 5,760,117.
Application 08/581191 is a continuation in part of application No. 08/581188, filed on Dec. 29, 1995, abandoned.
Application 08/581188 is a continuation in part of application No. 08/581125, filed on Dec. 29, 1995, granted, now 5,962,572.
Application 08/581125 is a continuation in part of application No. 08/288690, filed on Aug. 11, 1994, granted, now 5,633,286.
Application 08/288690 is a continuation in part of application No. PCT/US94/07314, filed on Jun. 27, 1994.
Application PCT/US94/07314 is a continuation in part of application No. PCT/US94/04278, filed on Apr. 19, 1994.
Application 08/581188 is a continuation in part of application No. 08/288690.
Application 08/288690 is a continuation in part of application No. PCT/US94/07314.
Application PCT/US94/07314 is a continuation in part of application No. PCT/US94/04278.
Application 08/581191 is a continuation in part of application No. 08/288690.
Application 08/288690 is a continuation in part of application No. PCT/US94/07314.
Application 08/581125 is a continuation in part of application No. 08/288690.
Application 08/288690 is a continuation in part of application No. PCT/US94/07314.
Prior Publication US 2005/0184619 A1, Aug. 25, 2005
Int. Cl. A61F 2/80 (2006.01)
U.S. Cl. 623—36  [442/85; 428/319.3; 428/441; 524/270; 524/474; 524/481; 524/505] 12 Claims
 
1. A gel liner comprising a composite article of a gelatinous elastomer composition, G, in contact with one or more of a selected substrate material, M, said gelatinous elastomer composition comprising:
(i) 100 parts by weight of one or more of a hydrogenated styrene isoprene/butadiene styrene block copolymer(s) selected from a hydrogenated styrene block polymer with hydrogenated elastomer midblocks of poly(2-methyl-1,3-butadiene) and poly(1,3-butadiene), a hydrogenated styrene block polymer with hydrogenated elastomer midblocks of poly(2-methyl-1,3-butadiene and 1,3-butadiene), and a poly(styrene-ethylene-ethylene-styrene) and
(ii) about 300 to about 1,600 parts by weight of a plasticizing oil; in combination with or without
(iii) a selected amount of one or more polymers or copolymers of poly(styrene-butadiene-styrene), poly(styrene-butadiene)n, poly(styrene-isoprene-styrene)n, poly(styrene-isoprene)n, poly(styrene-ethylene-propylene), poly(styrene-ethylene-propylene-styrene), poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-butylene), poly(styrene-ethylene-propylene)n, poly(styrene-ethylene-butylene)n, low viscosity poly(styrene-ethylene-butylene-styrene), polystyrene, polybutylene, poly(ethylene-propylene), poly(ethylene-butylene), polypropylene, or polyethylene, wherein said selected copolymer is a linear, radial, star-shaped, branched or multiarm copolymer, wherein n is greater than one; and wherein said composite formed from the combination GnGn, GnMn, GnMnMn, GnMnMnGn, GnGnMnMn, GnMnGnMnMn, GnMnGn, MnGnMn, GnGnMn, MnMnMnGn, MnMnMnGnMn, MnGnGnMn, GnMnGnGn, GnMnMnGn, GnGnMnMn, GnGnMnGnMn, GnMnGnMnMn, MnGnMnGnMnGn, GnGnMnMnGn, GnGnMnGnMnGn, a sequential addition or a permutation of one or more of said Gn with or without one or more Mn; wherein when n is a subscript of M, n is the same or different selected from the group consisting of foam, plastic, fabric, metal, ceramics, synthetic resin, synthetic fibers or refractory materials; and wherein when n is a subscript of G, n denotes the same or a different gel rigidity; said composite article having the shape of a liner for lower extremity socket insert above the knee amputee prosthesis formed by injection molding, extruding, spinning, casting, or dipping of said gel.