Tear resistant adherent gels, composites, and articles

• US 7,067,583 B2
• Filed: 04/21/2003
• Issued: 06/27/2006
• Est. Priority Date: 04/19/1994
• Status: Expired due to Fees

• Current Assignee: Applied Elastomerics Incorporated
• Original Assignee: Applied Elastomerics Incorporated
• Inventors: Chen, John Y.
• Primary Examiner(s): Harlan, Robert D.
• Application Number:
  US10/420,493
• Publication Number:
  US 20040225044A1
• Time in Patent Office: 1,163 Days
• Field of Search: 525/89, 525/98, 525/314
• US Class Current: 525/89
• CPC Class Codes: C08L 2205/03 containing three or more polymers in a blend
• CPC Class Codes: C08L 53/025 modified
• CPC Class Codes: C08L 91/00 Compositions of oils, fats or waxes; Compositions of derivatives thereof
• CPC Class Codes: C09J 153/025 modified

Abstract

Adherent gels and adherent gel composites which can be made by applying a tear resistant adherent gel of SEEPS onto one or more selected substrates of foam, plastic, fabric, metal, concrete, wood, wire screen, refractory material, glass, synthetic resin, synthetic fibers, and the like. Such adherent gels and gel composites are useful for protecting articles, the body and skin.

Claims

1. An adherent gel comprising from (a) 100 parts by weight of one or a mixture of two or more of a hydrogenated styrene isoprene/butadiene styrene block copolymer(s);

(b) from about 300 to about 1,600 parts by weight of one or more of a plasticizing oil(s), and a minor amount of one or more resin(s) to aid in adhesion;

wherein said adherent gel having greater tear resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer.

2. An adherent gel of claim 1, wherein said copolymer is one or more of a hydrogenated styrene block copolymer(s) with 2-methyl-1,3-butadiene and 1,3-butadiene of the configuration poly(styrene-ethylene-ethylene-propylene-styrene).

3. An adherent gel of claim 1, wherein said composition is characterized by a gel rigidity of from about 2 gram to about 1,800 gram Bloom.

11. An adherent gel according to claim 1 for dermal use.

12. An adherent gel according to claim 1, wherein said block copolymers is poly(styrene-ethylene-ethylene-propylene-styrene).

4. An adherent gel composite comprising (a) 100 parts by weight of one or more poly(styrene-ethylene-ethylene-propylene-styrene) block copolymers;

(b) from about 300 to about 1,600 parts by weight of a plasticizing oil;

(c) a selected minor amount of one or more resin(s) to aid in adhesion;

said block copolymers being in combination with or without one or more linear, multi-arm, branched, or star shaped copolymer of the general configuration poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-propylene-styrene), poly(styrene-ethylene-butylene)n, poly(styrene-ethylene-propylene)n or a mixture thereof and in combination with or without a selected amount of at least one polymer or copolymer selected from the group consisting of poly(styrene-butadiene-styrene), poly(styrene-butadiene), poly(styrene-isoprene-styrene), poly(styrene-isoprene), poly(styrene-ethylene-propylene), low viscosity poly(styrene-ethylene-propylene-styrene), low viscosity poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-butylene), polystyrene, polybutylene, poly(ethylene-propylene)n, poly(ethylene-butylene)n, polypropylene, and polyethylene, wherein said selected copolymer is a linear, branched, multiarm, or star shaped copolymer and said subscript n is 2 or greater;

said composite wherein said gel being denoted by G, is physically interlocked with a selected material M forming a composite of the combination G_nG_n, G_nM_n, G_nM_nG_n, M_nG_nM_n, M_nG_nG_n, M_nM_nG_n, M_nM_nM_nG_n, M_nM_nM_nG_nM_n, M_nG_nG_nM_n, G_nM_nG_nG_n, G_nM_nM_nG_n, G_nG_nM_nM_n, G_nG_nM_nG_nM_n, G_nM_nG_nM_nM_n, M_nG_nM_nG_nM_nG_n, G_nG_nM_nM_nG_n, G_nG_nM_nG_nM_nG_n, or a permutation of one or more of said G_n with M_n, wherein when n is a subscript of M, n is the same or different selected from the group consisting of foam, plastic, fabric, metal, concrete, wood, wire screen, refractory material, glass, synthetic resin, and synthetic fibers; and

wherein when n is a subscript of G, n denotes the same or a different gel rigidity of from about 2 gram to about 1,800 gram Bloom, said composite gels of two or more G_n having one or more of the same or a different resin(s) for adhesion;

wherein said adherent gel having greater tear and greater fatigue resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer alone.

5. An adherent gel comprising from (a) 100 parts by weight of one or more high viscosity block copolymer;

(b) from about 300 to about 1,600 parts by weight of one or more of a plasticizing oil, and a minor amount of two or more of an adhesion resins;

wherein said adherent gel having greater tear resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer.

6. An adherent gel comprising from (a) 100 parts by weight of one or more poly(styrene-ethylene-ethylene-propylene-styrene) block copolymer;

(b) from about 300 to about 1,600 parts by weight of one or more of a selected plasticizing oil(s), and a selected amount of one or more of an adhesion resin(s), said block copolymer having a Viscosity of a viscosity at 5 weight percent solution in toluene at 30°

C. of about 90 mPa-S, at 10 weight percent about 5800 mPa-S;

said adhesion resin selected from the group consisting of polymerized mixed olefins, polyterpene, glycerol ester of rosin, pentaerythritol ester of rosin, saturated alicyclic hydrocarbon, coumarone indene, hydrocarbon, mixed olefin, alkylated aromatic hydrocarbon, Polyalphamethylstyrene/vinyl toluene copolymer, and polystyrene;

wherein said adherent gel having greater tear resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer.

7. An adherent gel comprising from (a) 100 parts by weight of one or more poly(styrene-ethylene-ethylene-propylene-styrene) block copolymers in combination with or without one or more multi-arm poly(styrene-ethylene-propylene)_n block copolymers, said n being a number 2 or greater;

(b) from about 300 to about 1,600 parts by weight of one or more of a selected plasticizing oil(s), and a selected amount of one or more of an adhesion resin;

wherein said adherent gel having greater tear and greater fatigue resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer.

8. An adherent gel comprising from (a) 100 parts by weight of one or more poly(styrene-ethylene-ethylene-propylene-styrene) block copolymer;

(b) from about 300 to about 1,600 parts by weight of one or more of a selected plasticizing oil, and a selected amount of one or more of an adhesion resin(s);

wherein said adherent gel having greater tear resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer.

9. An adherent gel comprising from (a) 100 parts by weight of one or more poly(styrene-ethylene-ethylene-propylene-styrene) block copolymer, (b) from about 300 to about 1,600 parts by weight of one or more of a plasticizing oil, and a selected amount of one or more of an adhesion resin(s), said block copolymer in combination with or without a minor amount of one or more linear, multi-arm, branched, or star shaped copolymer of the general configuration poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-propylene)_n, poly(styrene-ethylene-butylene)_n, poly(styrene-ethylene-ethylene-propylene-styrene), or a mixture thereof and in combination with or without a selected amount of one or more polymer or copolymer of poly(styrene-butadiene-styrene), poly(styrene-butadiene), poly(styrene-isoprene-styrene), poly(styrene-isoprene), poly(styrene-ethylene-propylene)_n, low viscosity poly(styrene-ethylene-propylene-styrene), low viscosity poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-butylene)_n, low viscosity poly(styrene-ethylene-ethylene-propylene-styrene), polystyrene, polybutylene, poly(ethylene-propylene), poly(ethylene-butylene), polypropylene, or polyethylene, wherein said selected copolymer is a linear, branched, multiarm, or star shaped copolymer;

said n being a number 2 or greater.

10. An adherent gel composite comprising (I) 100 parts by weight of one or more poly(styrene-ethylene-ethylene-propylene-styrene) block copolymers;

(II) from about 300 to about 1,600 parts by weight of a plasticizing oil;

(III) a selected amount of one or more of an adhesion resin(s); and

in combination with or without a minor amount of one or more a linear, multi-arm, branched, or star shaped copolymer of the general configuration poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-propylene)n, poly(styrene-ethylene-butylene)n, poly(styrene-ethylene-ethylene-propylene-styrene), or a mixture thereof and in combination with or without a selected amount of one or more polymer or copolymer of poly(styrene-butadiene-styrene), poly(styrene-butadiene), poly(styrene-isoprene-styrene), poly(styrene-isoprene), poly(styrene-ethylene-propylene)n, low viscosity poly(styrene-ethylene-propylene-styrene), low viscosity poly(styrene-ethylene-butylene-styrene), poly(styrene-ethylene-butylene)n, low viscosity poly(styrene-ethylene-ethylene-propylene-styrene), polystyrene, polybutylene, poly(ethylene-propylene), poly(ethylene-butylene), polypropylene, or polyethylene, wherein said selected copolymer is a linear, branched, multiarm, or star shaped copolymer, said n being a number 2 or greater;

said composite wherein said gel being denoted by G, is physically interlocked with a selected material M forming a composite of the combination G_nG_{n, Gn}M_n, G_nM_nG_n, M_nG_nM_n, M_nG_nG_n, M_nM_nG_n, M_nM_nM_nG_n, M_nM_nM_nG_nM_n, M_nG_nG_nM_n, G_nM_nG_nG_n, G_nM_nM_nG_n, G_nG_nM_nM_n, G_nG_nM_nG_nM_n, G_nM_nG_nM_nM_n, M_nG_nM_nG_nM_nG_n, G_nG_nM_nM_nG_n, G_nG_nM_nG_nM_nG_n, or a permutation of one or more of said G_n with M_n, wherein when n is a subscript of M, n is the same or different selected from the group consisting of foam, plastic, fabric, metal, concrete, wood, wire screen, refractory material, glass, synthetic resin, and synthetic fibers; and

wherein when n is a subscript of G, n denotes the same or a different gel rigidity of from about 2 gram to about 1,800 gram Bloom, said composite gels of two or more G_n with or without M_n having one or more of the same or a different resin(s) for adhesion;

wherein said adherent gel having greater tear resistance than a corresponding gel of styrene-ethylene-propylene-styrene block copolymer.