Curable petroleum resin, preparation method therefor, and use thereof

Patent metadata

Field	Value
Publication number	US-11655398-B2
Application number	US-201716314351-A
Country	US
Kind code	B2
Filing date	Jun 30, 2017
Priority date	Jun 30, 2016
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

The present invention relates to a curable petroleum resin, a preparation method therefor, and use thereof, wherein the curable petroleum resin comprises a repeating unit derived from a petroleum resin monomer, a repeating unit derived from a silane monomer and a repeating unit derived from a cyclic anhydride monomer, and wherein the curable petroleum resin is used as an additive for a reactive polyolefin-based adhesive composition to increase the adhesive strength to a polyolefin-based substrate used for various parts.

First claim

The invention claimed is:

1. A curable petroleum resin comprising:
a repeating unit (A) derived from a petroleum resin monomer;
a repeating unit (B) derived from a silane monomer; and
a repeating unit (C) derived from a cyclic anhydride monomer,
wherein, based on the total weight of the repeating unit,
the wt % of the repeating unit (A) derived from a petroleum resin monomer is 30% to 70%;
the wt % of the repeating unit (B) derived from a silane monomer is 10% to 40%; and
the wt % of the repeating unit (C) derived from a cyclic anhydride monomer is 10% to 30%,
wherein the petroleum resin monomer comprises one selected from the group consisting of
mixed C5 fractions and dicyclopentadiene,
mixed C9 fractions and dicyclopentadiene, and
mixed C5 fractions, mixed C9 fractions, and dicyclopentadiene,
wherein the silane monomer is represented by the following Chemical Formula 2:
CH 2 ═CH(R 1 )—(COO) x (C n H 2n ) y Si(R 2 )(R 3 )(R 4 )  [Chemical Formula 2]

wherein R 1 is hydrogen or a methyl group;
R 2 to R 4 are the same as or different from each other, and hydrogen, or a C1 to C12 alkoxy group;
n is an integer of 1 to 12 and
x and y are 0 or 1.

2. The curable petroleum resin of claim 1 , wherein the cyclic anhydride monomer comprises one selected from the group consisting of maleic anhydride, itaconic anhydride, citraconic anhydride, propenyl succinic anhydride, 2-pentenedioic anhydride and combinations thereof.

3. The curable petroleum resin of claim 1 , wherein R 2 to R 4 are a C1 to C6 alkoxy group, n is an integer of 1 to 6.

4. The curable petroleum resin of claim 1 , wherein the silane monomer comprises one selected from the group consisting of vinyltrimethylsilane, vinyltrimethoxysilane, vinyltriethoxysilane, triacetoxyvinylsilane, triphenylvinylsilane, tris(2 methoxyethoxy)vinylsilane, 3-(trimethoxysilyl)propyl methacrylate, γ (meth)acryloxypropyltrimethoxysilane and mixtures thereof.

5. The curable petroleum resin of claim 1 , wherein the curable petroleum resin has a softening point of from 70° C. to 150° C., and a weight average molecular weight (Mw) of from 500 g/mol to 5000 g/mol.

6. A reactive adhesive composition comprising:
a polyolefin-based base polymer;
a petroleum resin; and
a catalyst,
wherein the petroleum resin is the curable petroleum resin of claim 5 .

7. The reactive adhesive composition of claim 6 , comprising based on the total weight of the composition:
the polyolefin-based base polymer in 70% by weight to 94% by weight;
the petroleum resin in 5% by weight to 30% by weight; and
the catalyst in 0.1% by weight to 10% by weight.

8. The reactive adhesive composition of claim 6 , wherein the polyolefin-based base polymer comprises one selected from among polyalphaolefin, polyolefin alone, copolymers thereof or blends thereof.

Assignees

• Kolon Inc

Inventors

• Lee Je Min
• Hwang Jae Kyung
• Lee Wan Jae
• Kim Myung Jong
• Gong Won Seok
• Park Jun Hyo

Classifications

• C08F240/00 Primary

  Copolymers of hydrocarbons and mineral oils, e.g. petroleum resins · CPC title

• C08L45/00

  Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers (of cyclic anhydrides or imides C08L35/00; of cyclic esters of polyfunctional acids C08L31/00) · CPC title

• C09J191/00

  Adhesives based on oils, fats or waxes; Adhesives based on derivatives thereof · CPC title

• C09J11/08 Primary

  Macromolecular additives · CPC title

• C08G77/42

  Block-or graft-polymers containing polysiloxane sequences (polymerising aliphatic unsaturated monomers on to a polysiloxane C08F283/12) · CPC title