摘要:
A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a porous medium other than a porous metal, the porous medium having a porosity of at least about 0.02, and wherein the other of the first and second media is a viscoelastic or elastic medium.
摘要:
A sound barrier comprises a substantially periodic array of structures disposed in a first medium having a first density, the structures being made of a second medium having a second density different from the first density, wherein one of the first and second media is a porous medium other than a porous metal, the porous medium having a porosity of at least about 0.02, and wherein the other of the first and second media is a viscoelastic or elastic medium.
摘要:
The disclose provides pressure-sensitive adhesives and adhesive sealants prepared from modified, crosslinked isobutylene copolymers, and tape articles prepared therefrom.
摘要:
The disclose provides pressure-sensitive adhesives and adhesive sealants prepared from modified, crosslinked isobutylene copolymers, and tape articles prepared therefrom.
摘要:
The disclosure provides pressure-sensitive adhesives and adhesive sealants prepared from amine-modified, crosslinked isobutylene copolymers, and tape articles prepared therefrom.
摘要:
The present invention pertains to nonwoven webs, and multi-component fibers comprising polydiorganosiloxane polyamide as well as method of making microfibers and multi-component fibers comprising a polydiorganosiloxane polyamide copolymer.
摘要:
An adhesive (co)polymers comprising: a) an isobutylene copolymer having pendent anhydride groups, b) a polyamine photobase generator and c) optionally a tackifier is described.
摘要:
Disclosed is a curable silicone composition for preparing release layers and pressure sensitive adhesives, and to substrates bearing a layer of the cured composition. More specifically, this invention relates to a silicone composition, curable in the absence of both catalysts and actinic radiation comprising a cyclic anhydride copolymer and an amine-terminated polysiloxane.
摘要:
Disclosed are copolymers which comprise: a) an isobutylene copolymer having grafted polymer groups, b) optionally a tackifier, and c) optionally a non-functionalized poly(isobutylene) polymer. The compositions are useful in adhesives and coatings.