Silane modified elastomeric compositions and articles made therefrom
First Claim
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1. A melt extrudable, moisture curable, thermoplastic polymer fiber comprising an elastomeric styrenic block co-polymer which has been modified prior to fiberization by thoroughly mixing with and grafting onto said copolymer a silane or mixtures of silanes having the formula;
- ##STR2## wherein;
Z is selected from the group consisting of double bonded groups capable of reaction under radical polymerization conditions;
R1, R2, and R3 are selected from the group consisting of alkoxy, Cl, Br, ester, O--Si, alkyl and aryl groups, provided, however, that at least one R group must be reactive in order to function as a hydrolytically reactive agent;
and wherein said silane has been added to said elastomeric polymer in an amount between about 0.01 and about 10 weight percent.
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Abstract
There is provided a melt extrudable, moisture curable thermoplastic polymer which is produced from a silane modified elastomeric polymer and which has improved hysteresis, reduced stress decay and improved creep properties. The polymer may be processed into a nonwoven web, film, fiber or foam which may be laminated to other materials such as spunbond polyolefin layers and may be used in medical, personal care, feminine hygiene and other applications.
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Citations
5 Claims
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1. A melt extrudable, moisture curable, thermoplastic polymer fiber comprising an elastomeric styrenic block co-polymer which has been modified prior to fiberization by thoroughly mixing with and grafting onto said copolymer a silane or mixtures of silanes having the formula;
- ##STR2## wherein;
Z is selected from the group consisting of double bonded groups capable of reaction under radical polymerization conditions;R1, R2, and R3 are selected from the group consisting of alkoxy, Cl, Br, ester, O--Si, alkyl and aryl groups, provided, however, that at least one R group must be reactive in order to function as a hydrolytically reactive agent; and wherein said silane has been added to said elastomeric polymer in an amount between about 0.01 and about 10 weight percent. - View Dependent Claims (2, 3, 4, 5)
- ##STR2## wherein;
Specification