摘要:
Electron beam and gamma radiation crosslinked, silicone gel adhesives are described. Both nonfunctional and functional poly diorganosiloxanes are used. Methods of forming the adhesives, and medical articles incorporating such adhesives are also described.
摘要:
Methods of electron beam curing nonfunctional polysiloxanes and silanol terminated polysiloxanes are described. The resulting release materials are also described.
摘要:
A method for surfacing a polymeric composite article and/or for joining (for example, by bonding or by co-curing) the article and an adherend (for example, a second polymeric composite article) comprises (a) providing a cured or curable polymeric composite article; (b) providing a curable composition comprising (1) at least one thermosetting resin, and (2) at least one preformed, substantially non-functional, particulate modifier comprising at least one elastomer; and (c) directly or indirectly applying the composition to at least a portion of at least one surface of the article.
摘要:
The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermoplastic layer with a substrate and heating the sheet material to an elevated temperature. The invention also provides a sheet material which comprises at least one layer consisting essentially of one or more thermoplastic, melt-flowable polymers that are semi-crystalline at room temperature.
摘要:
A multi-layer article which may be provided in the form of a tape comprises a conformable, compressible, melt flow-resistant core layer having first and second major surfaces, a sealant layer on the first major surface of the core layer, and optionally a bonding layer on the second major surface of the core layer. The sealant layer and the bonding layer each have a surface available for contacting a separate substrate. Various thermoset and foam core layers are disclosed as are thermosettable and thermoplastic sealant layers. The articles are useful for sealing two substrates together, particularly where one of the substrates is glass. Thus, the articles are especially adapted for sealing motor vehicle windshields to a frame. Various assemblies and methods for producing the same are also described.
摘要:
A multi-layer article which may be provided in the form of a tape comprises a conformable, compressible, melt flow-resistant core layer having first and second major surfaces, a sealant layer on the first major surface of the core layer, and optionally a bonding layer on the second major surface of the core layer. The sealant layer and the bonding layer each have a surface available for contacting a separate substrate. Various thermoset and foam core layers are disclosed as are thermosettable and thermoplastic sealant layers. The articles are useful for sealing two substrates together, particularly where one of the substrates is glass. Thus, the articles are especially adapted for sealing motor vehicle windshields to a frame. Various assemblies and methods for producing the same are also described.
摘要:
Electron beam and gamma radiation crosslinked, silicone gel adhesives are described. Both nonfunctional and functional poly diorganosiloxanes are used. Methods of forming the adhesives, and medical articles incorporating such adhesives are also described.
摘要:
Methods of preparing silicone pressure sensitive adhesives are described. The methods include electron beam curing nonfunctionalized silicone materials, e.g., silicone fluids and gums. Hot melt processing the nonfunctionalized silicone materials prior to electron beam crosslinking, and crosslinked adhesives prepared by such methods are also described. Adhesives prepared by hot melt coating and electron beam curing nonfunctionalized silicone materials and adhesive articles incorporating such adhesives are also disclosed.
摘要:
Methods of preparing silicone materials using electron beam curing are described. The materials are hot melt processed and cured in the absence of an effective amount of catalysts and initiators. Both functional and nonfunctionalized silicone materials may be used. Exemplary cured materials include silicone pressure sensitive adhesives, silicone foams, and non-tacky silicon films.
摘要:
The invention provides a method for imparting topographical or protective features to a substrate by contacting a sheet material comprising a thermosettable layer with a substrate and heating the sheet material to an elevated temperature.