Coating compositions, coatings and methods for sound and vibration damping and water resistance

• US 9,546,296 B2
• Filed: 12/15/2014
• Issued: 01/17/2017
• Est. Priority Date: 12/15/2014
• Status: Active Grant

• Current Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Original Assignee: PPG Industries Ohio Incorporated (Nouryon BV)
• Inventors: Wang, Wei, Chao, Tien-Chieh, Fenn, David R., Phelps, Kenneth T.
• Primary Examiner(s): SASTRI, SATYA B
• Application Number:
  US14/569,873
• Publication Number:
  US 20160168411A1
• Time in Patent Office: 764 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B60R 13/08 Insulating elements, e.g. for sound insulation sound insulating linings for trains B61D17/185; drivers' cabs for load-carrying vehicles insulated against vibrations or noise B62D33/0604; thermal or acoustic insulation of engines F02B77/11; damping of sounds using compensation by electro-acoustic methods G10K11/178
• CPC Class Codes: C08F 212/08 Styrene
• CPC Class Codes: C08F 220/14 Methyl esters , e.g. methyl (meth)acrylate
• CPC Class Codes: C08F 220/1808 C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
• CPC Class Codes: C08F 220/325 containing glycidyl radical, e.g. glycidyl (meth)acrylate
• CPC Class Codes: C08F 222/1061 of alcohol terminated polyesters or polycarbonates, e.g. polyester (meth)acrylates
• CPC Class Codes: C08F 285/00 Macromolecular compounds obtained by polymerising monomers on to preformed graft polymers
• CPC Class Codes: C08K 3/013 Fillers, pigments or reinforcing additives
• CPC Class Codes: C08K 5/1515 Three-membered rings
• CPC Class Codes: C08L 51/003 grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds C08L51/04, C08L51/06 take precedence
• CPC Class Codes: C08L 71/00 Compositions of polyethers obtained by reactions forming an ether link in the main chain of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06; Compositions of derivatives of such polymers
• CPC Class Codes: C09D 133/068 containing glycidyl groups
• CPC Class Codes: C09D 133/08 Homopolymers or copolymers of acrylic acid esters
• CPC Class Codes: C09D 4/06 Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
• CPC Class Codes: C09D 5/00 Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced electrically insulating plastics, resins or waxes H01B3/30; Filling pastes
• CPC Class Codes: C09D 7/20 Diluents or solvents

Abstract

A coating composition having a measured solids content of at least 95% according to test method ASTM D2369 is disclosed. The composition includes a mixture of (a) a polymer prepared from one or more functional monomers comprising a (meth)acrylic monomer, an allyl monomer, or combinations thereof each having an ethylenically unsaturated double bond and an additional reactive functional group, and (b) a reactive diluent. At least some of the additional reactive functional group of the functional monomer remains unreacted during formation of the polymer. The reactive diluent has a boiling point of greater than 100° C. and a reactive functional group that reacts with the reactive functional group on the polymer at a temperature that is lower than the boiling point of the reactive diluent. Also disclosed are substrates having a cured coating thereon, the coating formed from the cured coating composition, and methods for providing sound and vibration damping.

Claims

1. A coating composition comprising:

a mixture comprising;

(a) a polymer prepared from one or more functional monomers comprising a (meth)acrylic monomer, an allyl monomer, or combinations thereof each having an ethylenically unsaturated double bond and an additional reactive functional group;

wherein at least some of the additional reactive functional group of the functional monomer remains unreacted during formation of the polymer; and

(b) a reactive diluent having a boiling point of greater than 100°

C. and a reactive functional group that reacts with the reactive functional group on the polymer at a temperature that is lower than the boiling point of the reactive diluent; and

a filler material,

wherein the polymer is dispersed in the reactive diluent and the coating composition has a measured solids content of at least 95% according to test method ASTM D2369.

2. The coating composition according to claim 1, wherein the functional monomers comprise glycidyl (meth)acrylate.

3. The coating composition according to claim 1, wherein the polymer comprises from 1 to 70 weight percent of the functional monomer(s), based on a total weight of the polymer.

4. The coating composition according to claim 1, wherein the polymer is prepared from one or more of the functional monomers and one or more monomers having an ethylenically unsaturated double bond without an additional reactive functional group.

5. The coating composition according to claim 1, wherein the polymer has a weight average molecular weight of from 1,000 g/mole to 100,000 g/mole, as determined by gel permeation chromatography using a polystyrene standard in tetrahydrofuran.

6. The coating composition according to claim 1, wherein the polymer has a weight average molecular weight of at least 150,000 g/mole, as determined by gel permeation chromatography using a polystyrene standard in tetrahydrofuran.

7. The coating composition according to claim 1, wherein the polymer is substantially free of acid functional groups.

8. The coating composition according to claim 1, wherein the reactive functional group of the reactive diluent comprises an epoxy functional group.

9. The coating composition according to claim 1, wherein the reactive diluent is a mono-functional reactive diluent.

10. The coating composition according to claim 1, wherein the reactive diluent is a poly-functional reactive diluent.

11. The coating composition according to claim 1, wherein the reactive diluent is present in an amount of from 5 to 70 weight percent, based on a total weight of the mixture of the polymer and reactive diluent.

12. The coating composition according to claim 1, wherein the mixture further comprises a second polymer that is dispersed in the reactive diluent.

13. The coating composition according to claim 1, wherein a mixture of the polymer and the reactive diluent, in the absence of the filler material or any other component, has a Brookfield viscosity of from 1,000 centipoise to 25,000 centipoise measured at 100 rpm with a #6 spindle at ambient temperature.

14. The coating composition according to claim 1, further comprising a catalyst that is capable of catalyzing a reaction between the polymer and the reactive diluent.

15. The coating composition according to claim 1, further comprising an antioxidant, a plasticizer, or combinations thereof.

16. The coating composition according to claim 1, wherein the composition is substantially free of solvent.