A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a similar or different substance. Reverse roll coating may be used to coat the two surfaces of the sheet of laminate material. The method described is particularly suited for applying a substance providing balancing characteristics desirable in the end product to one side of the laminate material and applying a substance providing other characteristics desirable in the end product to the other side of the laminate material. For example, a balancing substance may be applied on one side of a kraft paper sheet and a substance providing structural bonding applied to the other side, thereby eliminating the need to use a discrete balancing sheet in a laminate. The kraft sheet thus coated may be used to form a laminate panel that may be applied on an exterior wall, an interior wall, siding, a roof top, a facade boarding, a counter top, a table top or a work top.
A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing characteristics desirable in the manufacturing process to one side of the laminate material and applying a substance providing characteristics desirable in the end product to the other side of the laminate material. For example, a release agent may be applied on one side of a kraft paper sheet and phenolic resin on the other side, thereby eliminating the need to use release sheets in the manufacture of laminates. The kraft sheet thus coated may be used in a laminate product.
A system and a method for coating two sides of a laminate material is disclosed in which one side of the laminate material is coated with one substance and the second side is coated with a different substance. The method described is particularly suited for applying a substance providing balancing characteristics desirable in the end product to one side of the laminate material and applying a substance providing other characteristics desirable in the end product to the other side of the laminate material. For example, a balancing substance may be applied on one side of a kraft paper sheet and a substance providing structural bonding applied to the other side, thereby eliminating the need to use a discrete balancing sheet in a laminate. The kraft sheet thus coated may be used to form a laminate panel.
Improved sealant compositions and processes for producing sealant are described. The processes include contacting in a reactor under reaction conditions a polymer containing at least one vinyl, acrylate, or methacrylate monomer and at least one silane comonomer, at least one polymer capping agent, a catalyst and a reactive diluent. Sealant compositions are also described. The compositions include a polymer containing at least one vinyl, acrylate or methacrylate monomer and at least one silane comonomer, at least one silane component, a catalyst and a reactive diluent.
Robson Mafoti - Temple TX, US Yuduo Zhu - Grand Prairie TX, US
International Classification:
C08L083/00
US Classification:
524/588000
Abstract:
The present invention includes compositions of, and methods for creating, adhesive and sealant materials that offer reduced densities and costs without substantially affecting the adhesive properties associated with the materials.
Adhesive For Bonding Decorative Melamine Treated Paper To Particle Board
Polyvinyl acetate emulsion based adhesives can be made effective for bonding melamine formaldehyde resin treated decorative solid color and print paper to particle board. This polyvinyl acetate emulsion based adhesive is formulated with tackified polyvinyl alcohol, starch, a tackifier and a coupling agent. Stress cracking is substantially eliminated. Additionally, wrinkling and edge and corner peel resulting during the movement of sheets of melamine resin treated paper on the top and bottom surfaces of sheets of particle board through a heating and pressing zone is substantially eliminated.
Peter H. Markusch - McMurray PA Jeffrey A. Dodge - Wexford PA Robson Mafoti - Temple TX
Assignee:
Bayer Corporation - Pittsburgh PA
International Classification:
B32B 300 B32B 710 B32B 712 C08G 1828
US Classification:
428221
Abstract:
The present invention relates to a method for adhering two or more substrates by (1) applying to a surface of one of said substrates a non-sagging polyurea adhesive composition comprising the reaction product of: (a) a polyphenyl polymethylene polyisocyanate or a urea-modified prepolymer thereof and (b) an isocyanate-reactive component comprising amines consisting essentially of (i) an aminocrotonate-terminated polyether containing at least two secondary amino groups prepared by reaction of a polyfunctional acetoacetylated polyether polyol with a primary monoamine, and (ii) a low molecular weight aromatic and/or aliphatic diamine, and (2) contacting said substrate with a surface of a second substrate, and (3) curing the polyurea adhesive composition.
Polycarbonate Compositions Having Mold-Release Properties
John J. Charles - Upper St. Clair PA Charles E. Lundy - Summerville SC Robson Mafoti - Temple TX
Assignee:
Bayer Corporation - Pittsburgh PA
International Classification:
C08F28302
US Classification:
525466
Abstract:
A thermoplastic molding composition comprising polycarbonate and a comples ester are disclosed. The ester which conforms to ##STR1## wherein p is an integer of 2 to 8, q is an integer of 7 to 13 and R and R' independently denote a C. sub. x H. sub. 2x+1 -group, where x is an integer of 8 to 24, with the proviso that R is linear, was found to impart to the composition excellent mold filling and release properties.