IP Library Granted Patent US 12679958
Granted Patent B2
US 12679958 · App. 18/249,429 · Granted Jul 14, 2026

Curable compositions, articles therefrom, and methods of making and using same

Inventors: Lalitha V.N.R. Ganapatibhotla (Lake Elmo, MN); Michael A. Kropp (Cottage Grove, MN); Emelie M. Fritz (Västerås, SE); Adrian T. Jung (Kaarst, DE)
Assignee: 3M Innovative Properties Company
C08L9/00C09J109/00H01M10/653H01M50/209H01M50/293C08L2205/03
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Quick Facts
Patent No.
US 12679958
App. No.
18/249,429
Granted
Jul 14, 2026
Kind
B2
Abstract

A curable composition includes a polyol component including one or more polyols; a functional butadiene component; and filler particles; wherein the curable composition has, upon curing, a thermal conductivity of at least 3.0 W/(mK). The filler particles include aluminum trihydrate (ATH) and a smoke suppressant selected from zinc hydroxy stannate (ZHS), zinc stannate, calcium stannate, calcium hydroxy stannate and any combination thereof.

Claims (22)

1 . A curable composition comprising:

a polyol component comprising one or more polyols;

a functional butadiene component; and

filler particles, the filler particles comprising ATH and a smoke suppressant selected from ZHS, zinc stannate, calcium stannate, and calcium hydroxy stannate, and the filler particles being present in an amount of at least 20 wt. %, based on the total weight of the curable composition;

wherein the curable composition has, upon curing, a thermal conductivity of at least 3.0 W/(mK).

2 . The curable composition of claim 1 , wherein the smoke suppressant is present in the curable composition in an amount in of at least 0.5 wt. %, based on the total weight of the curable composition.

3 . The curable composition of claim 1 , wherein the smoke suppressant comprises ZHS.

4 . The curable composition of claim 1 , wherein ATH is present in the curable composition in an amount of at least 10 wt. %, based on the total weight of the curable composition.

5 . The curable composition of claim 1 , wherein the filler particles further comprise alumina.

6 . The curable composition of claim 1 , wherein the curable composition has, upon curing, a density of less than 2.5 g/cc.

7 . The curable composition of claim 1 , wherein the curable composition has, upon curing, a UL-94 flame retardancy rating of V0.

8 . The curable composition of claim 1 , wherein the polyol component further comprises one or more monofunctional alcohols.

9 . The curable composition of claim 1 , wherein the functional butadiene component comprises malenized polyalkyldienes, maleated liquid rubber, maleated liquid isoprene, liquid polyfarnescene, or maleated styrene-butadiene rubber.

10 . The curable composition of claim 1 , further comprising a resin capable of reacting with the acid of an acid/ester formed when an alcohol group of the polyols react with the functional butadiene component.

11 . The curable composition of claim 10 , wherein the resin comprises an epoxidized vegetable oil, epoxided fatty acid ester, epoxided alpha olefin, or epoxidized polybutene.

12 . The curable composition of claim 1 , further comprising an amine catalyst.

13 . An article comprising a first substrate, a second substrate and a cured composition disposed between and adhering the first substrate to the second substrate, wherein the cured composition is the reaction product of the curable composition according to claim 1 .

14 . A battery module comprising a plurality of battery cells connected to a first base plate by a first layer of a curable composition according to claim 1 .

15 . A method of making a battery module comprising:

applying a first layer of a curable composition according to claim 1 to a first surface of a first base plate;

attaching a plurality of battery cells to the first layer to connect the battery cells to the first base plate; and

curing the curable composition.