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US 12,183,479 B2Granted
Chemical foaming agents containing tosyl groups
AssigneeDow Global Technologies LLC
InventorsGangwei Sun, Hongyu Chen, Mohamed Esseghir, Renhua Fan, Shuo-En Wang
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Abstract
Chemical foaming agents having p-toluenesulfonyl groups. Processes for preparing foamed polyolefin compositions using chemical foaming agents having p-toluenesulfonyl groups. Articles of manufacture containing formed polyolefins prepared using chemical foaming agents having p-toluenesulfonyl groups.
Claims4
A chemical foaming agent comprising one or more of the following compounds shown as structures (III) through (IX):
- where Ts is a p-toluenesulfonyl group.
A process of foaming a polyolefin, said process comprising:
- (a) combining a polyolefin with a chemical foaming agent to thereby form a foamable polyolefin composition;
- and
- (b) subjecting the foamable polyolefin composition to a foaming process,
- wherein the chemical foaming agent comprises one or more of the following compounds shown as structures (III) through (IX):
- where Ts is a p-toluenesulfonyl group.
2 more elements
Dependencies are inferred from the claim text.