Fins and profiles for plastic bags

A fastener for a plastic bag comprising:

• a male track including a male profile and a first fin, the first fin extending from the male profile;
• and
• a female track including a female profile and a second fin, the second fin extending from the female profile, at least one of the first and second fins comprising a cyclic olefin copolymer and at least a second polymer selected from a polyolefinic resin, an engineering resin, and a combination thereof, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.

A fastener for a plastic bag comprising:

• a male track including a male profile and a first fin, the first fin extending from the male profile;
• and
• a female track including a female profile and a second fin, the second fin extending from the female profile, the first fin includes at least a first layer and a second layer and the second fin includes at least a third layer and a fourth layer, the first and third layers comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418, the second and fourth layers are selected from a tie layer, a polyolefin layer, a barrier layer, and a sealant layer.

A fastener for a plastic bag comprising:

• a male track including a male profile and a first fin, the first fin extending from the male profile;
• and
• a female track including a female profile and a second fin, the second fin extending from the female profile, at least one of the male and female profiles comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.

A fastener for a plastic bag comprising:

• a male track including a male profile and a first fin, the first fin extending from the male profile;
• and
• a female track including a female profile and a second fin, the second fin extending from the female profile, at least one of the male and female profiles comprising a cyclic olefin copolymer and at least a second polymer selected from a polyolefinic resin, an engineering resin, and a combination thereof, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.

A fastener for a plastic bag comprising:

• a male track including a male profile and a first fin, the first fin extending from the male profile;
• and
• a female track including a female profile and a second fin, the second fin extending from the female profile, the male profile includes at least a first layer and a second layer and the female profile includes at least a third layer and a fourth layer, the first and third layers comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418, the second and fourth layers are selected from a tie layer, a polyolefin layer, a barrier layer, and a sealant layer.

A fastener for a plastic bag comprising:

• a male track including a male profile;
• and
• a female track including a female profile, at least one of the male and female profiles comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.

A fastener for a plastic bag comprising:

• a male track including a male profile;
• and
• a female track including a female profile, at least one of the male and female profiles comprising a cyclic olefin copolymer and at least a second polymer selected from a polyolefinic resin, an engineering resin, and a combination thereof, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.

A fastener for a plastic bag comprising:

• a male track including a male profile;
• and
• a female track including a female profile, the male profile includes at least a first layer and a second layer and the female profile includes at least a third layer and a fourth layer, the first and third layers comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418, the second and fourth layers are selected from a tie layer, a polyolefin layer, a barrier layer, and a sealant layer.

A fastener for a plastic bag comprising:

• a male track including a male profile and a first fin, the first fin extending from the male profile;
• and
• a female track including a female profile and a second fin, the second fin extending from the female profile, at least one of the male and female profiles comprising a cyclic olefin copolymer and at least one of the first and second fins comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.

A polymeric bag comprising:

• first and second opposing body panels fixedly connected to each other along a pair of sides and a bottom bridging the pair of sides;
• and
• a reclosable fastener extending along a mouth formed opposite the bottom, the fastener including a pair of interlocking flexible plastic tracks, the plastic tracks including a male track including a male profile, and a female track including a female profile, at least one of the male and female profiles comprising a cyclic olefin copolymer, the cyclic olefin copolymer having a glass transition temperature, Tg, of greater than about 20° C. as determined by ASTM D3418.