Resin Composition

• US 20080214717A1
• Filed: 06/06/2006
• Published: 09/04/2008
• Est. Priority Date: 06/07/2005
• Status: Abandoned Application

• Current Assignee: Kaneka Corporation
• Original Assignee: Kaneka Corporation
• Inventors: Nakashima, Tohru, Yao, Takeshi
• Application Number:
  US11/921,716
• Publication Number:
  US 20080214717A1
• Time in Patent Office: Days
• US Class Current: 524/427
• CPC Class Codes: C08K 2201/008 Additives improving gas barrier properties
• CPC Class Codes: C08K 3/00 Use of inorganic substances as compounding ingredients
• CPC Class Codes: C08L 23/22 Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefins
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 2666/04 Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
• CPC Class Codes: C08L 2666/06 Homopolymers or copolymers of unsaturated hydrocarbons; Derivatives thereof
• CPC Class Codes: C08L 2666/24 Graft or block copolymers according to groups C08L51/00, C08L53/00 or C08L55/02; Derivatives thereof
• CPC Class Codes: C08L 53/00 Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 53/025 modified
• CPC Class Codes: C09J 153/00 Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
• CPC Class Codes: C09J 153/025 modified
• CPC Class Codes: C09K 2200/0208 Carbon
• CPC Class Codes: C09K 2200/0239 Oxides, hydroxides, carbonates
• CPC Class Codes: C09K 2200/0243 Silica-rich compounds, e.g. silicates, cement, glass
• CPC Class Codes: C09K 2200/0617 Polyalkenes
• CPC Class Codes: C09K 2200/0632 Polystyrenes
• CPC Class Codes: C09K 3/10 Materials in mouldable or extrudable form for sealing or packing joints or covers filling pastes C09D5/34
• CPC Class Codes: E06B 3/6733 by applying, e.g. extruding, a ribbon of hardenable material on or between the panes
• CPC Class Codes: E06B 3/67343 Filling or covering the edges with synthetic hardenable substances

Abstract

The present invention has its object to provide a resin composition excellent in gas barrier properties, mechanical strength and elasticity and further showing only a slight extent of gravity deformation under high temperature conditions. The invention relates to a resin composition which comprises an isobutylene-based polymer (A), an isobutylene-based block copolymer (B) comprising a polymer block (b1) the constituent monomer(s) of which is(are) an aromatic vinyl compound(s) and a polymer block (b2) the constituent monomer(s) of which is(are) isobutylene, and a filler (C). This composition can be used as a sealant, in particular as a hot melt sealant for double glazing units, and as a hot melt spacer material for double glazing units.

Claims

1. A resin composition

which comprises

an isobutylene-based polymer (A),

an isobutylene-based block copolymer (B) comprising a polymer block (b1) the constituent monomer of which is an aromatic vinyl compound and a polymer block (b2) the constituent monomer of which is isobutylene, and

a filler (C).

2. The resin composition according to claim 1

wherein the isobutylene-based block copolymer (B) has a number average molecular weight of 30,000 to 300,000.

3. The resin composition according to claim 1

wherein the weight ratio (b2)/(b1) between the polymer block (b2) and polymer block (b1) in the isobutylene-based block copolymer (B) is 95/5 to 50/50.

4. The resin composition according to claim 1

wherein the isobutylene-based block copolymer (B) is a styrene-isobutylene block copolymer.

5. The resin composition according to claim 1

wherein the isobutylene-based block copolymer (B) is a styrene-isobutylene-styrene triblock copolymer.

6. The resin composition according to claim 1

wherein the filler (C) is at least one species selected from the group consisting of calcium carbonate and carbon black.

7. The resin composition according to claim 1

which further comprises a moisture-absorbing compound (D).

8. The resin composition according to claim 7

wherein the moisture-absorbing compound (D) is at least one species selected from the group consisting of silica gel, alumina and zeolite.

9. The resin composition according to claim 1

which further comprises a styrenic thermoplastic elastomer other than the component (B).

10. A sealant

which comprises the resin composition according to claim 1.

11. A hot melt sealant for double glazing units

which comprises the resin composition according to claim 1.

12. A hot melt spacer for double glazing units which comprises the resin composition according to claim 1.