VULCANIZABLE COMPOSITION HAVING ACOUSTIC ATTENTUATING PROPERTIES

• US 20120136129A1
• Filed: 11/29/2011
• Published: 05/31/2012
• Est. Priority Date: 06/08/2009
• Status: Active Grant

• Current Assignee: Henkel AG & Co KGaA
• Original Assignee: Henkel AG & Co KGaA
• Inventors: KOHLSTRUNG, Rainer, Yamada, Takehito
• Granted Patent: US 8,436,105 B2
• Time in Patent Office: Days
• US Class Current: 526/220
• CPC Class Codes: C08K 5/0025 Crosslinking or vulcanising agents; including accelerators
• CPC Class Codes: C08K 5/14 Peroxides
• CPC Class Codes: C08K 5/32 Compounds containing nitrogen bound to oxygen
• CPC Class Codes: C08K 5/33 Oximes
• CPC Class Codes: C08L 13/00 Compositions of rubbers containing carboxyl groups
• CPC Class Codes: C08L 21/00 Compositions of unspecified rubbers
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• 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 53/02 of vinyl-aromatic monomers and conjugated dienes
• CPC Class Codes: C08L 9/00 Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• CPC Class Codes: C08L 9/06 Copolymers with styrene

Abstract

The invention relates to a composition that can be thermally cured, containing relative to the total composition, a) 5 to 90% by weight of a diene-based polymer or copolymer containing an olefinic double bond and/or an aromatically substituted olefin, wherein the polymer or copolymer is liquid, or paste-like, at 22° C. and has a glass transition temperature between −30° C. and +15° C., measured according to a DSC method; b) a vulcanization system selected from the group consisting of: b1) sulfur, and one or more accelerator(s), b2) peroxidic or disulfidic vulcanization systems, b3) quinones, quinone dioximes, or dinitrosobenzene.

Claims

1. A thermally curable composition, comprising, based on the total composition

a) 5 to 90 wt % of an olefinic double bond-containing polymer or copolymer based on diene and/or on an aromatic substituted olefin, wherein the polymer or copolymer is liquid or pasty at 22°

C. and has a glass transition temperature, measured by a DSC method, between −

30°

C. and +15°

C.,

b) a vulcanization system selected from the group consisting of;

b1) sulfur and one or more accelerator(s),

b2) peroxidic or disulfidic vulcanization systems

b3) quinones, quinone dioximes or dinitrosobenzene

2. The composition according to claim 1, wherein a copolymer of styrene and a diene represents the polymer or copolymer a).

3-13. -13. (canceled)

14. A thermally curable composition that is a pumpable composition at a temperature in the range of 15 to 60°

C. comprising, based on the total composition

a) 5 to 90 wt % of an olefinic double bond-containing polymer or copolymer that is liquid or pasty at 22°

C.,

b) a vulcanization system selected from the group consisting of;

b1) sulfur and one or more accelerator(s),

b2) peroxidic vulcanization systems

b3) quinones, quinone dioximes or dinitrosobenzene,

wherein after the thermal curing, the composition has a loss factor tan δ

, measured by a DMA method, of at least 0.50 in the temperature range of −

5°

C. to +40°

C.