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US 2026/0308424 A1Published application
Hot-Melt, Pressure-Sensitive Adhesive With A Wide Range Of Application-Temperature
AssigneeHenry Company, LLC
InventorsLarisa Kasitskaya, Srdjan Stankovic, Thomas Tepe
Life of this patent
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Abstract
The present invention relates to hot-melt, pressure-sensitive adhesives (HM-PSA); self-adhering, vapor-permeable air-barriers comprising such HM-PSA; and the process of adhering such air-barriers on to construction material substrates in a primer-less fashion to control the vapor movement of water vapor and air.
Claims22
A hot-melt, pressure-sensitive adhesive (HM-PSA) composition, comprising a blend of the following components:
- (A) at least one elastomeric copolymer selected from a styrene-isoprene elastomeric block copolymer (SIS);
- a styrene-butadiene elastomeric copolymer (SB);
- and a combination of SIS and SB;
- (B) at least one tackifying compound selected from:
- (I) at least one tackifying rosin ester having a softening point (SP) equal to or above the temperature selected from the range of from about 95° C. to about 125° C.;
- (II) at least one tackifying rosin phenolics having a softening point equal to or above the temperature selected from the range of from about 95° C. to about 125° C.;
- and;
- (III) at least one hydrogenated dicyclopentadiene resin having a softening point (SP) of at least about 125° C.;
- and
- (C) a plasticizer;
- wherein the glass transition temperature of the HM-PSA composition is equal to or below the temperature in the range of from about 0° C. to about −30° C.
8 more elements
A method for preparing an air-barrier membrane, comprising:
- (a) providing a HM-PSA composition in a form adequate for application on a carrier;
- and
- (b) applying said HM-PSA composition on said carrier in a discontinuous pattern, to form said air-barrier membrane;
- wherein said HM-PSA composition, pressure-sensitive adhesive (HM-PSA) composition, comprising a blend of the following components:
- (A) at least one elastomeric block copolymer selected from a styrene-isoprene elastomeric block copolymer (SIS);
- a styrene-butadiene elastomeric block copolymer (SB);
- a combination of SIS and SB;
- (B) at least one tackifying compound selected from:
- (I) at least one tackifying rosin ester having a softening point (SP) equal to or above the temperature selected from the range of from about 95° C. to about 125° C.;
- (II) at least one tackifying rosin phenolics having a softening point equal to or above the temperature selected from the range of from about 95° C. to about 125° C.;
- and;
- (III) at least one hydrogenated dicyclopentadiene resin having a softening point (SP) of at least about 125° C.;
- and
- (C) a plasticizer;
- wherein the glass transition temperature of the HM-PSA composition is equal to or below the temperature in the range of from about 0° C. to about −30° C.
12 more elements
Dependencies are inferred from the claim text.