[12] Patent
[11] Patent No.:GC0011522  
[45] Date of Publishing the Grant of the Patent: 31/Dec /2020                77/2020  
Number of the Decision to Grant the Patent:2020/176228
Date of the Decision to Grant the Patent:07/Dec/2020

[21] Application No.:GCC/P/2008/11305

[22] Filing Date:15/7/2008

[30] Priority:

[33] State [32] Priority date [31] Priority No.
IT
18/7/2007
1447

[72] Inventors:1- Antonio PONTICIELLO ،2- Dario GHIDONI ،3- Loris ZAMPERLIN ،4- Alessandra SIMONELLI

[73] Owner: POLIMERI EUROPA S.p.A., Piazza Boldrini 1 - SAN DONATO MILANESE, Milan, Italy

[74] Agent: Suleiman I. Al-Ammar Law Office

  

 

  

[51]IPC:
Int. Cl.: C08J 9/00, 9/20; C08L 25/08; C08F 112/08 (2006.01)

[56] Cited Documents:

-US 2006\276557 A1 (PONTICILO ANTONIO [IT] ET AL) 7 December 2006
-GB 1 448 402 A (HUELS CHEMISCHE WERKE AG) 8 September 1976
 
Examiner: Yahiya Naser Al-BuSafi

[54] COMPOSITIONS OF EXPANDABLE VINYL AROMATIC POLYMERS AND PROCESS FOR THEIR PREPARATION
[57] Abstract: An expandable composition comprising:a. a polymeric matrix selected from: a1. a copolymer containing: 90-99.995% of at least one vinyl aromatic monomer; and 0.005-10% by weight of a salt or ester of styrene sulfo-nic acid; or a2. a polymeric mixture comprising: 92-99.995% by weight of a vinyl aromatic (co)polymer; and 0.005-8% by weight of a product selected from a salt or ester of styrene sulfonic acid and a copolymer of sty-rene with a C1-C4 salt or ester of styrene sulfonic acid; andb. 1-10% by weight, calculated with respect to the polymeric matrix (a), of an expanding agent.
No. of claims: 6


 

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