Granted Patent B2

US 12,584,049 · App. 17/776,294 · Granted Mar 24, 2026

Inventors: Desiree Nicole Snyder (Metamora, MI); David Carlson (Rochester Hills, MI); Alexis Leigh Ferrier (Oak Park, MI)

Assignee: H.B. Fuller Company

C09J163/04C09J5/08C09J9/005C09J2203/102C09J2301/412C09J2301/416C09J2463/00

Abstract

Claims (51)

1 . A stick comprising an adhesive composition, wherein the adhesive composition comprises the reaction product of an ultraviolet-curable adhesive composition comprising:

A) an epoxy curing agent component;

B) a microencapsulated epoxy resin component;

C) an expansion agent component;

D) a binder component; and

E) a photoinitiator component;

wherein the microencapsulated epoxy resin component B) and the expansion agent component C) are present in a weight ratio of from about 15:1 to about 1:1.

2 . The stick according to claim 1 , wherein the microencapsulated epoxy resin component B) and the expansion agent component C) are present in a weight ratio of from about 5:1 to about 3:1.

3 . The stick according to claim 1 , wherein the epoxy curing agent component A):

i) comprises an amine;

ii) is present in the ultraviolet-curable adhesive composition in an amount of from about 1 to about 20 part(s) by weight based on 100 parts by weight of the ultraviolet-curable adhesive composition; or iii) both i) and ii).

4 . The stick according to claim 1 , wherein the microencapsulated epoxy resin component B):

i) comprises a novolac epoxy resin, a bisphenol F epoxy resin, or a combination thereof;

ii) is present in the ultraviolet-curable adhesive composition in an amount of from about 25 to about 55 parts by weight based on 100 parts by weight of the ultraviolet-curable adhesive composition; or iii) both i) and ii).

5 . The stick according to claim 1 , wherein the expansion agent component C):

i) comprises a microencapsulated expansion agent;

ii) is present in the ultraviolet-curable adhesive composition in an amount of from about 1 to about 30 part(s) by weight based on 100 parts by weight of the ultraviolet-curable adhesive composition; or iii) both i) and ii).

6 . The stick according to claim 1 , wherein the binder component D):

i) comprises a methacrylate-containing olefinically unsaturated monomer, an acrylate-containing olefinically unsaturated monomer, an acrylic resin, or combinations thereof;

ii) is present in the ultraviolet-curable adhesive composition in an amount of from about 20 to about 50 parts by weight based on 100 parts by weight of the ultraviolet-curable adhesive composition; or iii) both i) and ii).

7 . The stick according to claim 6 , wherein the binder component D) comprises the methacrylate-containing olefinically unsaturated monomer and the acrylate-containing olefinically unsaturated monomer, and optionally wherein the methacrylate-containing olefinically unsaturated monomer and the acrylate-containing olefinically unsaturated monomer are present in a weight ratio of from about 10:1 to about 1:10, optionally of from about 2:1 to about 1:2.

8 . The stick according to claim 1 , wherein the photoinitiator component E) is present in the ultraviolet-curable adhesive composition in an amount of from about 0.1 to about 10 parts by weight based on 100 parts by weight of the ultraviolet-curable adhesive composition.

9 . The stick according to claim 1 , wherein the ultraviolet- curable adhesive composition further comprises an anti-settling component, a colorant component, or a combination thereof.

10 . A method of forming the stick according to claim 1 , the method comprising:

providing the ultraviolet-curable adhesive composition; and

irradiating the ultraviolet-curable adhesive composition to form the adhesive composition.

11 . The method according to claim 10 , wherein the step of providing the ultraviolet-curable adhesive composition comprises:

providing the ultraviolet-curable adhesive composition to a nozzle; and

expelling the ultraviolet-curable adhesive composition through the nozzle to a release liner.

12 . The method according to claim 10 , wherein the stick has a semi-circular and/or semi-elliptical cross-section.

13 . The method according to claim 10 , wherein the method comprises partitioning the stick to form a plurality of portions of the stick.

14 . The method according to claim 10 , wherein the ultraviolet-curable adhesive composition is irradiated utilizing a source configured to generate ultraviolet light.

15 . The method according to claim 14 , wherein the step of irradiating the ultraviolet-curable adhesive composition comprises:

locating the source and the ultraviolet-curable adhesive composition proximate to each other; and

energizing the source to generate ultraviolet light to irradiate the ultraviolet-curable adhesive composition.

16 . The stick according to claim 1 , formed by at least partially curing the ultraviolet-curable adhesive composition.

17 . The stick according to claim 1 , wherein the stick has:

a length of from 1 to 500 mm;

a diameter of from 0.1 to 10 mm; and/or

a cross-section having a circular configuration, a semi-circular configuration, an elliptical configuration, a square configuration, a rectangular configuration, or a triangular configuration . . .

18 . A method for joining a fastener and an element defining a borehole, the method comprising the steps of:

providing the fastener;

providing the stick as set forth in claim 1 ;

disposing the stick into the borehole; and

disposing the fastener into the borehole;

wherein the stick is disposed at least partially between the fastener and the borehole to form a joint; and

wherein the stick expands and cures in the joint to fasten the fastener in the borehole.

19 . The method according to claim 18 , wherein:

i) the fastener is an anchor or screw;

ii) the element comprises at least one of cement, concrete, or mortar; or

iii) both i) and ii).

Assignments (4)

Continuity (2)

References Cited (10)