摘要:
Provided are a propylene-based polymer which enhances heat creep resistance and a hot-melt adhesive having excellent heat creep resistance. A propylene-based polymer which satisfies the following (1) and (2): (1) 125≦a modulus of elasticity in tension (MPa) at 23° C.≦400; and (2) 100≦an elongation at break (%) at 23° C.≦1,000, and a hot-melt adhesive containing the propylene-based polymer in an amount of 1 to 50% by mass.
摘要:
A polyolefin resin composition for hot melt adhesives includes 5 to 95% by weight of (A) an ethylene-α-olefin copolymer having a melting point of at least 100° C. but not more than 140° C.; and 5 to 95% by weight of (B) an ethylene-α-olefin copolymer having a melting point of at least 70° C. but less than 100° C.
摘要:
Provided are a polyolefin resin having two crystallization temperatures, a resin composition including the polyolefin resin, an encapsulant film, a method for manufacturing the encapsulant for an optoelectronic device, and an optoelectronic device, in which the encapsulant having high light transmittance and low haze value can be provided even under the condition of low lamination, and the resin composition including the polyolefin resin can be used for manufacturing various encapsulants for an optoelectronic device, thereby providing excellent adhesive strength with the front substrate and back sheet included in the device, especially, a long-term adhesion property and improved heat resistance.
摘要:
A low activation temperature heat seal hot melt adhesive for packaging applications based on a blend of metallocene catalyzed polyolefin polymer, tackifying resin, wax and other optional additives. In order to achieve the high viscosity suitable for an extrusion heat seal application, the adhesive composition of the invention is highly loaded with polymer, and thus should have a viscosity of about 50,000 centipoise or more measured at a temperature of 300° F. Accordingly, the hot melt adhesive composition contains about 50% to about 90% by weight of metallocene catalyzed polyolefin polymer, about 5% to about 50% by weight of tackifying resin, about 0.5% to about 40% by weight of wax, about 0.1% to about 5% by weight of a stabilizer or antioxidant, and 0% to about 25% by weight of optional additives. The hot melt adhesive composition must have an activation temperature of about 160° F. or less, and provide a minimum peel force of about 1.0 pound per inch in order to meet the sealing performance requirements for packaging food and other consumer goods.
摘要:
Radiation curable adhesive compositions comprising an acrylic polymer and a polyolefin find use in the manufacture of pressure sensitive adhesive articles such as, for example, tapes.
摘要:
The present disclosure provides a tie-layer adhesive comprising a first polymer composition comprising a grafted polyethylene, a second polymer composition comprising a polyethylene derived from a metallocene catalyst, a third polymer composition that comprises low density polyethylene. In general embodiments, the tie-layer adhesive comprises a primary additive and/or a secondary additive.
摘要:
It has been discovered that amorphous polybutene copolymers that have a softening point of from about 70 to about 105° C. and viscosity of less than about 1,900 cP at 190° C. possesses desirable properties and may be used to make a low application temperature hot melt adhesive for disposable absorbent articles.
摘要:
The invention relates to a low application temperature hot melt adhesive. More specifically, the low application temperature hot melt adhesive comprises olefin copolymers with an average Melt Index greater than 5 but less than about 35 g/10 minutes at 190° C. The adhesive is particularly useful in the construction of nonwoven articles.
摘要:
Disclosed are hot melt adhesives combining an ethylene/a-olefin copolymer, an isotactic polypropylene polymer or copolymer, a nucleating agent and a tackifing resin that can be used in case or carton applications.
摘要:
The invention relates to a low application temperature hot melt adhesive. More specifically, the low application temperature hot melt adhesive comprises olefin copolymers with an average Melt Index greater than 5 but less than about 35 g/10 minutes at 190° C. The adhesive is particularly useful in the construction of nonwoven articles.