C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/10 (2006.01) C08G 18/08 (2006.01) C08G 18/12 (2006.01) C08L 75/04 (2006.01) C09D 175/04 (2006.01) E21D 11/00 (2006.01)
Patent
CA 2460335
A liner is the product of reaction of (a) a hydrophilic prepolymer bearing isocyanate groups; and (b) a water-borne polymer dispersion, the polymer bearing groups that are reactive to isocyanate groups; wherein the dispersion has a sufficiently high solids content, and the polymer has a sufficiently high modulus and glass transition or crystalline melting temperature, that the product of reaction exhibits a 24-hour Tensile Strength of at least about 2.5 MPa.
L'invention concerne une garniture de protection obtenue à partir de la réaction entre (a) un prépolymère hydrophile contenant des groupes isocyanate et (b) une dispersion polymère à base d'eau, le polymère contenant des groupes réagissant aux groupes isocyanate. La dispersion a une teneur en solides suffisante et le polymère possède un module et une température de transition vitreuse ou un point de fusion cristalline suffisamment élevés, pour que le produit de la réaction présente une résistance à la traction d'au moins 2,5 MPa, environ, sur 24 heures.
Sengupta Ashok
Tong Jiangdong
3m Innovative Properties Company
Smart & Biggar
LandOfFree
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