Plasticizer for acrylic mastics and adhesives

Patent metadata

Field	Value
Publication number	US-10538643-B2
Application number	US-201615758990-A
Country	US
Kind code	B2
Filing date	Sep 7, 2016
Priority date	Sep 9, 2015
Publication date	Jan 21, 2020
Grant date	Jan 21, 2020

Abstract

Composition including at least one hydrocarbon-containing cut of petroleum origin or obtained from biomass conversion (a) and at least one copolymer (b) resulting from the copolymerization of: at least one monomer selected from: acrylic acid and any salt thereof, optionally at least one monomer selected from: methacrylic acid and any salt thereof, at least one monomer selected from the monomers of formula (I):

R—X—R′  (I)

according to which R represents a polymerizable unsaturated function, R′ denotes hydrogen or an alkyl group having from 1 to 4 carbon atoms, X represents a structure including n unit(s) of ethylene oxide EO and m unit(s) of propylene oxide PO, m and n are two integers in the range from 0 to 150, at least one of which is not zero.

First claim

The invention claimed is:

1. A composition comprising:
a) at least one hydrocarbon-containing cut of petroleum origin or obtained from biomass conversion, and
b) at least one copolymer resulting from the copolymerization of:
at least one monomer selected from: acrylic acid and any salt thereof,
optionally at least one monomer selected from: methacrylic acid and any salt thereof,
at least one monomer selected from the monomers of formula (I):
R—X—R′  (I)

according to which:
R represents a polymerizable unsaturated function,
R′ denotes hydrogen or an alkyl group having from 1 to 4 carbon atoms,
X represents a structure comprising n unit(s) of ethylene oxide EO and m unit(s) of propylene oxide PO,
m and n are two integers in the range from 0 to 150, at least one of which is not zero.

2. The composition as claimed in claim 1 that comprises a content of hydrocarbon-containing cut (a) from 60 to 90 wt % relative to the total weight of the composition.

3. The composition as claimed in claim 1 that comprises a content of hydrocarbon-containing cut (a) from 65 to 85 wt % relative to the total weight of the composition.

4. The composition as claimed in claim 1 , in which the hydrocarbon-containing cut (a) is a dearomatized hydrocarbon-containing cut.

5. The composition as claimed in claim 1 , in which the hydrocarbon-containing cut (a) has the following properties:
a boiling point from 200 to 420° C., according to standard ASTM D86.

6. The composition as claimed in claim 1 , in which the hydrocarbon-containing cut (a) has the following properties:
a kinematic viscosity at 40° C. from 2 to 20 mm2/s, according to standard ASTM D445.

7. The composition as claimed in claim 1 , in which the hydrocarbon-containing cut (a) has the following properties:
a flow point from −45 to +10° C., according to standard ASTM D97.

8. The composition as claimed in claim 1 , in which the hydrocarbon-containing cut (a) comprises a content by weight relative to the total weight of the hydrocarbon-containing cut (a):
of paraffins from 60 to 99%,
of naphthenes from 1 to 40%,
of aromatic compounds less than or equal to 300 ppm.

9. The composition as claimed in claim 1 , which comprises a content of copolymer (b) from 10 to 40 wt % relative to the total weight of the composition.

10. The composition as claimed in claim 1 , which comprises a content of copolymer (b) from 15 to 35% relative to the total weight of the composition.

11. The composition as claimed in claim 1 , in which m and n are two integers selected from the group from 1 to 150.

12. The composition as claimed in claim 1 , which comprises at least one copolymer (b) resulting from the copolymerization of a set of monomers consisting of, by weight relative to the total weight of monomers:
at most 20% of at least one monomer selected from: acrylic acid and any salt thereof,
from 0 to 10% of monomers selected from: methacrylic acid and any salt thereof, and
at least 80% of monomers of formula (I).

13. The composition as claimed in claim 1 , which comprises at least two copolymers (b) resulting from the copolymerization of a set of monomers:
b1) at least one copolymer consisting of:
monomers of acrylic acid and/or any salt thereof,
monomers of formula (I):
R—X—R′  (I)

according to which:
R represents a polymerizable unsaturated function,
R′ denotes hydrogen or an alkyl group having from 1 to 4 carbon atoms,
X represents a structure comprising n unit(s) of ethylene oxide EO and m unit(s) of propylene oxide PO,
m and n are two integers in the range from 0 to 150, at least one of which is not zero

b2) at least one copolymer consisting of:
monomers of acrylic acid and/or any salt thereof,
monomers of methacrylic acid and/or any salt thereof,
monomers of formula (I′):
R″—X′—R″′  (I′)

according to which:
R″ represents a polymerizable unsaturated function,
R″′ denotes hydrogen or an alkyl group having from 1 to 4 carbon atoms,
X′ represents a structure comprising n′ unit(s) of ethylene oxide EO and m′ unit(s) of propylene oxide PO,
m′ and n′ are two integers in the range from 0 to 150, at least one of which is not zero.

14. The composition as claimed in claim 13 , in which:
copolymer b1) has a molecular weight Mw from 20 000 to 80 000 g/mol, and
copolymer b2) has a molecular weight Mw greater than or equal to 500 000 g/mol.

15. The composition as claimed in claim 1 , which comprises a content of phthalates less than or equal to 1 wt % relative to the total weight of the composition.

16. A composition of acrylic mastic comprising a content by weight of the composition as claimed in claim 1 from 1 to 20 wt % relative to the total weight of the mastic composition.

17. The composition of mastic comprising a content by weight of the composition from 1 to 20 wt % relative to the total weight of the mastic composition, further comprising, by weight relative to the total weight of the composition:
0 to 60% of at least one filler,
10 to 88% of at least one acrylic polymer or copolymer in aqueous dispersion,
10 to 40% of water,
1 to 5% of at least one surfactant,
1 to 20% of at least one composition as claimed in claim 1 .

18. A composition of acrylic adhesive comprising a content by weight of the composition as claimed in claim 1 from 1 to 20 wt % relative to the total weight of the adhesive composition.

19. The composition of adhesive comprising a content by weight of the composition from 1 to 20 wt % relative to the total weight of the adhesive composition further comprising, by weight relative to the total weight of the composition:
0 to 60% of at least one filler and/or of at least one tackifying resin,
10 to 88% of at least one acrylic polymer or copolymer in aqueous dispersion,
10 to 40% of water,
1 to 5% of at least one surfactant,
1 to 20% of at least one composition as claimed in claim 1 .

Assignees

• Total Marketing Services
• Coatex Sas

Inventors

• Bardin Franck
• Bauer Thorsten
• Suau Jean-Marc
• Champagne Clémentine

Classifications

• C09K3/10

  {Materials in mouldable or extrudable form} for sealing or packing joints or covers (filling pastes C09D5/34) · CPC title

• C09J133/00

  Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers · CPC title

• C08L33/14

  of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen · CPC title

• C08K5/01 Primary

  Hydrocarbons {(C08K5/0091 takes precedence)} · CPC title

• C08K5/00

  Use of organic ingredients · CPC title