Molded surface fastener
First Claim
1. A molded surface fastener, the molded surface fastener being integrally molded using a first resin composition and a second resin composition as materials, the molded surface fastener comprising a substrate portion in a form of plate and a plurality of engaging elements that protrude from one main surface of the substrate portion, at least a part of the substrate portion being made of the first resin composition, and at least a part of the engaging elements being made of the second resin composition,wherein the first resin composition comprises 80% by mass or more of a thermoplastic polyester and does not contain a magnetic material, andwherein the second resin composition comprises a thermoplastic polyester, a thermoplastic polyester elastomer and a magnetic material at a total content of 90% by mass or more, a content of the magnetic material is from 20 to 50% by mass, and a content ratio by mass of the thermoplastic polyester and the thermoplastic polyester elastomer is in a range of the thermoplastic polyester/the thermoplastic polyester elastomer =50/50 to 90/10.
1 Assignment
0 Petitions
Accused Products
Abstract
An integrally moldable molded surface fastener retains practical rigidity, while having attraction force to a magnet and is prevented from being easily broken during attachment and detachment handlings to and from loop-shaped engaging elements. A first resin composition including 80% by mass or more of a thermoplastic polyester and containing no magnetic material is used in at least a part of a substrate portion, and a second resin composition containing a thermoplastic polyester, a thermoplastic polyester elastomer and a magnetic material at a certain proportion is used in at least a part of engaging elements of the molded surface fastener.
23 Citations
10 Claims
-
1. A molded surface fastener, the molded surface fastener being integrally molded using a first resin composition and a second resin composition as materials, the molded surface fastener comprising a substrate portion in a form of plate and a plurality of engaging elements that protrude from one main surface of the substrate portion, at least a part of the substrate portion being made of the first resin composition, and at least a part of the engaging elements being made of the second resin composition,
wherein the first resin composition comprises 80% by mass or more of a thermoplastic polyester and does not contain a magnetic material, and wherein the second resin composition comprises a thermoplastic polyester, a thermoplastic polyester elastomer and a magnetic material at a total content of 90% by mass or more, a content of the magnetic material is from 20 to 50% by mass, and a content ratio by mass of the thermoplastic polyester and the thermoplastic polyester elastomer is in a range of the thermoplastic polyester/the thermoplastic polyester elastomer =50/50 to 90/10.
Specification