摘要:
The novel thermoplastic elastomer composition of the present invention, which comprises an isobutylene block copolymer (A) containing a polymer block composed predominantly of isobutylene and a polymer block composed predominantly of an aromatic vinyl compound and an alkenyl-terminated isobutylene polymer (B), is highly flexible, and satisfactory in good moldability, rubber-like characteristics, mechanical strengths, permanent compression set characteristics and vibration damping properties.
摘要:
The novel thermoplastic elastomer composition of the present invention, which comprises an isobutylene block copolymer (A) containing a polymer block composed predominantly of isobutylene and a polymer block composed predominantly of an aromatic vinyl compound and an alkenyl-terminated isobutylene polymer (B), is highly flexible, and satisfactory in good moldability, rubber-like characteristics, mechanical strengths, permanent compression set characteristics and vibration damping properties.
摘要:
The present invention provides a thermoplastic elastomer composition which is not only satisfactory in rubber-like characteristics and moldability but also satisfactory in both permanent compression set and vibration damping properties and comprises an unsaturated bond-containing isobutylene polymer (A) and an olefinic resin (B).
摘要:
An object of the present invention is to provide a thermoplastic elastomer composition which is highly flexible while maintaining vibration damping properties, as a feature of an isobutylene polymer, and is excellent in moldability and rubber-like properties, and also has particularly improved permanent compression set. The object is achieved by a thermoplastic elastomer composition comprising (A) a composition obtained by crosslinking an isobutylene polymer having an alkenyl group at the molecular ends with a hydrosilyl group-containing compound while melt-kneading in the presence of at least one kind selected from an aromatic vinyl-containing thermoplastic elastomer and an olefinic resin, and (B) at least one kind selected from the group consisting of an aromatic vinyl-containing thermoplastic elastomer and an olefinic resin.
摘要:
An object of the present invention is to provide a thermoplastic elastomer composition which is highly flexible while maintaining vibration damping properties, as a feature of an isobutylene polymer, and is excellent in moldability and rubber-like properties, and also has particularly improved permanent compression set. The object is achieved by a thermoplastic elastomer composition comprising (A) a composition obtained by crosslinking an isobutylene polymer having an alkenyl group at the molecular ends with a hydrosilyl group-containing compound while melt-kneading in the presence of at least one kind selected from an aromatic vinyl-containing thermoplastic elastomer and an olefinic resin, and (B) at least one kind selected from the group consisting of an aromatic vinyl-containing thermoplastic elastomer and an olefinic resin.
摘要:
It is an object of the present invention to provide a polymer composition including a polymer produced by cationic polymerization in which the composition does not liberate a chlorine component by heating, which prevent processing apparatus, driers, etc. from corroding, and which is odorless and safe. The object is achieved by a polymer composition obtained by adding a double salt containing magnesium and aluminum as metal atoms to a polymer containing chlorine atoms produced by polymerizing cationically polymerizable monomers with an initiator in the presence of a Lewis acid.
摘要:
A sealing material for insulating glass eliminating problem necessity of long-time aging after production is provided and a resin composition having high long-term adhesion strength, high shape retention, and high gas-barrier property and especially having excellent hot-melt adhesive property is also provided. The sealing material for insulating glass including a resin composition having hot-melt adhesive property contains an isobutylene-based diblock copolymer (A) composed of a polymer block (a) containing an aromatic vinyl compound as a constituent monomer and a polymer block (b) containing isobutylene as a constituent monomer.
摘要:
The present invention relates to a sealing material composition comprising a novel resin composition and excellent not only in gas barrier properties but also in hot melt adhesive properties, in particular. It also relates to a sealing material made by using the above-mentioned composition, in particular a sealing material for double glazing. The present invention can be accomplished by using a sealing material composition which comprises an alkenyl group-terminated isobutylene-based polymer (A), a thermoplastic resin (B) and a compound (C) containing at least two hydrosilyl groups within the molecule thereof.
摘要:
Crosslinked rubber particles comprising an isobutylene polymer component, an organosiloxane polymer component and optionally a vinyl polymer component, or graft copolymer particles comprising the crosslinked rubber particles and a vinyl polymer grafted onto the crosslinked rubber particles, which are useful particularly for improving the low temperature impact resistance of thermoplastic resins without impairing weatherability and heat stability thereof.
摘要:
A polyolefin resin composition which comprises: (A) a polyolefin, (B) 0.1 to 100 parts of a core-shell graft copolymer prepared by graft copolymerizing (b) 5 to 60 parts by weight of a monomer component comprising a copolymerizable vinyl compound selected so that the glass transition temperature of a polymer of said monomer component alone is not less than 25.degree. C., onto (a) 40 to 95 parts by weight of a crosslinked rubber-like polymer having a glass transition temperature of not more than 25.degree. C., and (C) 0 to 400 parts of an inorganic filler, said parts of (B) and (C) being parts by weight per 100 parts by weight of (A). The above-mentioned polyolefin resin composition shows the excellent processability, impact resistance, rigidity and surface property.