Including Aldehyde Or Ketone Condensation Polymer (e.g., Urea Formaldehyde Polymer, Melamine Formaldehyde Polymer, Etc.) Patents (Class 428/355AK)
  • Pressure sensitive tape for forming water-tight field joints in rubber membranes
    Patent number: 6120869
    Abstract: An adhesive roofing tape is based on a combination of brominated butyl rubber and EPDM. A non-diene block terpolymer is interspersed in the cross-linked polymer network. A plasticizer and tackifier are included to provide resiliency and permanent tack. An important aspect of the invention is to use a high molecular weight polyisobutylene plasticizer and a peroxide curing system. Rapid crosslinking without concomitant rapid degradation of the brominated butyl rubber occurs and some limited degradation of the plasticizer contributes to surface tack. A method of making the adhesive roofing tape is also provided.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: September 19, 2000
    Assignee: Carlisle Companies Inc.
    Inventors: Daniel John Cotsakis, Ronald Lynn Senderling, Nicholas John Shears
  • Pressure sensitive tape for forming water-tight field joints in rubber membranes
    Patent number: 5733621
    Abstract: An adhesive roofing tape is based on a combination of brominated butyl rubber and EPDM. A non-diene block terpolymer is interspersed in the cross-linked polymer network. A plasticizer and tackifier are included to provide resiliency and permanent tack. An important aspect of the invention is to use a high molecular weight polyisobutylene plasticizer and a peroxide curing system. Rapid crosslinking without concomitant rapid degradation of the brominated butyl rubber occurs and some limited degradation of the plasticizer contributes to surface tack. A method of making the adhesive roofing tape is also provided.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: March 31, 1998
    Assignee: Carlisle Companies Incorporated
    Inventors: Daniel John Cotsakis, Ronald Lynn Senderling, Nicholas John Shears
  • Pressure sensitive adhesive composition and products
    Patent number: 5667858
    Abstract: A pressure sensitive adhesive composition is provided having about 100 parts by weight of a crosslinkable elastomer, from 20-100 parts by weight of a tackifying resin, at least 0.1 part by weight of a higher aliphatic mercaptan, up to 30 parts by weight of a heat curable phenolic resin, and up to about 10 parts by weight of a catalyst for the phenolic resin.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: September 16, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard J. Pokorny
  • Removable pressure sensitive adhesive and article
    Patent number: 5663241
    Abstract: A removable pressure sensitive adhesive comprises pressure sensitive adhesive microparticles that are the polymerization product of a mono-olefinically unsaturated monomer having an aldehyde group or a ketone group, and a base monomer. By the addition of a polyhydrazide, other adhesives with improved properties can be provided.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: September 2, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Yorinobu Takamatsu, Kengo Imamura, Richard J. Goetz
  • Pressure-sensitive adhesives having improved adhesion to acid-rain resistant automotive paints
    Patent number: 5612136
    Abstract: The present invention provides a pressure-sensitive adhesive composition and tape prepared therefrom which has excellent ability to adhere to acidic surfaces such as acid-rain resistant automotive paints. The adhesive comprises a crosslinked copolymer comprising certain (meth)acrylate esters, certain nitrogen containing basic monomers copolymerizable therewith, optional copolymerizable acidic monomer, and crosslinker.
    Type: Grant
    Filed: October 6, 1994
    Date of Patent: March 18, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Albert I. Everaerts, Satoshi Takeda, Peter A. Stark