Shaped articles made from thermoplastic polymers
First Claim
1. A shaped article comprising a base and at least one portion adhered thereto, said base being of a first thermoplastic polymer, said portion being formed by injection welding and made of a second thermoplastic polymer at least partially incompatible with said first polymer, said portion being connected to said base at least one interface, at least one of said first polymer and said second polymer forming a mixture with 5 to 75% by weight, based on said mixture, of a third polymer which is an olefin homopolymer and/or copolymer, having functional groups thereon, whereby each polymer may contain up to 90% of additives.
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Accused Products
Abstract
An article consisting of a base and one or more attachments thereto. The base is made of one thermoplastic polymer and the attachment is made of a second thermoplastic polymer which is at least partially incompatible with the first polymer. Either the first or second polymer contains 5 to 75% by weight of a third polymer which is an olefinic polymer having functional groups thereon. Either of the first two polymers may contain up to 90% of the usual additives. This enables the production of such articles with high interface strength.
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Citations
36 Claims
- 1. A shaped article comprising a base and at least one portion adhered thereto, said base being of a first thermoplastic polymer, said portion being formed by injection welding and made of a second thermoplastic polymer at least partially incompatible with said first polymer, said portion being connected to said base at least one interface, at least one of said first polymer and said second polymer forming a mixture with 5 to 75% by weight, based on said mixture, of a third polymer which is an olefin homopolymer and/or copolymer, having functional groups thereon, whereby each polymer may contain up to 90% of additives.
Specification