US2008237529A1PendingUtilityA1

Sprayable Acoustic Compositions

47
Assignee: EVONIK ROEHM GMBHPriority: Oct 28, 2005Filed: Aug 17, 2006Published: Oct 2, 2008
Est. expiryOct 28, 2025(expired)· nominal 20-yr term from priority
Inventors:Jan Hendrik SchattkaGerd LoehdenHerbert JungFlorian MatthessRebecca Zmarzly
C09D 133/12C08L 33/12C08L 33/00
47
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Claims

Abstract

The invention relates to sprayable acoustic compositions, production processes and uses.

Claims

exact text as granted — not AI-modified
1 - 26 . (canceled) 
     
     
         27 . A plastisol formulation, comprising
 a) from 1 to 60% by weight of oligomers whose molar mass is smaller than 20 000 g/mol, and which contain at least 30% by weight of (meth)acrylates,   b) from 0 to 60% by weight of solvents for the oligomers a),   c) from 5 to 60% by weight of pulverulent polymers whose molar mass is greater than 100 000 g/mol, and   d) other fillers, auxiliaries and/or additives,   where components a) to c) make up at least 20% of said formulation.   
     
     
         28 . The plastisol formulation according to  claim 27 , wherein components a) to c) make up at least 40% by weight of said formulation. 
     
     
         29 . The plastisol formulation according to  claim 27 , wherein the oligomers a) contain at least 60% by weight of (meth)acrylates. 
     
     
         30 . The plastisol formulation according to  claim 27 , wherein the molar mass of each of the oligomers a) is <10 000 g/mol. 
     
     
         31 . The plastisol formulation according to  claim 27 , wherein the molar mass of each of the oligomers a) is <5000 g/mol. 
     
     
         32 . The plastisol formulation according to  claim 27 , wherein the oligomer or one of the oligomers contains free hydroxy, carboxy, or amide groups. 
     
     
         33 . The plastisol formulation according to  claim 27 , wherein a phthalate, adipate, phosphate or citrate is used as solvent b). 
     
     
         34 . The plastisol formulation according to  claim 27 , wherein a phthalate is used as solvent b). 
     
     
         35 . The plastisol formulation according to  claim 27 , wherein the molar mass of the polymers c) is >400 000 g/mol. 
     
     
         36 . The plastisol formulation according to  claim 27 , wherein at least one of the polymers c) is composed of more than 60% by weight of (meth)acrylates. 
     
     
         37 . The plastisol formulation according to  claim 36 , wherein each of the polymers c) is composed of more than 60% by weight of (meth)acrylates. 
     
     
         38 . The plastisol formulation according to  claim 27 , wherein at least one of the polymers c) is composed of more than 80% by weight of (meth)acrylates. 
     
     
         39 . The plastisol formulation according to  claim 36 , wherein at least one of the polymers c) is composed of more than 60% by weight of methyl methacrylate. 
     
     
         40 . The plastisol formulation according to  claim 36 , wherein at least one of the polymers c) is composed of more than 80% by weight of methyl methacrylate. 
     
     
         41 . The plastisol formulation according to  claim 27 , wherein the polymers c) take the form of particles whose size is from 200 to 1200 nm. 
     
     
         42 . The plastisol formulation according to  claim 27 , wherein the particles c) have a structure in which one or more shells is/are present with, optionally a different monomer constitution around a core. 
     
     
         43 . The plastisol formulation according to  claim 27 , wherein the oligomers a) and/or the polymers c) bear one or more functional groups which can result in post-crosslinking. 
     
     
         44 . The plastisol formulation according to  claim 43 , wherein said functional groups are hydroxy groups. 
     
     
         45 . The plastisol formulation according to  claim 43 , wherein post-crosslinking takes place via the addition of a reactive component. 
     
     
         46 . The plastisol formulation according to  claim 45 , wherein one of the reactive components is an isocyanate. 
     
     
         47 . The plastisol formulation according to  claim 27 , wherein the auxiliary, filler or additive d) is a blowing agent. 
     
     
         48 . A surface coating comprising the plastisol formulation according to  claim 27 . 
     
     
         49 . A sheet metal coating comprising the plastisol formulation according to  claim 27 . 
     
     
         50 . A coating for bodywork parts in automobile construction comprising the plastisol formulations according to  claim 27 . 
     
     
         51 . A composition for the damping of vibrations in sheet metal comprising the plastisol formulations according to  claim 27 . 
     
     
         52 . A composition for the filling of cavities comprising the plastisol formulations according to  claim 27 .

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