Gel sealing corrosion prevention tape

Patent metadata

Field	Value
Publication number	US-2016017143-A1
Application number	US-201414773199-A
Country	US
Kind code	A1
Filing date	Mar 5, 2014
Priority date	Mar 8, 2013
Publication date	Jan 21, 2016
Grant date	—

Abstract

A composition comprising a deformable tacky polyurethane polymer, which is the reaction product of: a polyisocyanate, a polyol and a mono-hydroxy tackifier; and one or more non-chromated corrosion inhibitors. In addition, compositions are provided comprising a deformable tacky polyurethane polymer, which is the reaction product of: a polyisocyanate, a polyol and a mono-hydroxy tackifier; one or more of: surface modified silica nanoparticles, glass bubbles and fiber filler particles; and one or more non-chromated corrosion inhibitors. In addition, a flexible gasketing tape is provided comprising a composition according to the present disclosure.

First claim

1 . A composition comprising:
a deformable tacky polyurethane polymer which is the reaction product of a polyisocyanate, a polyol and a mono-hydroxy tackifier; and a non-chromated corrosion inhibitor.

2 . The composition according to claim 1 , wherein the non-chromated corrosion inhibitor is an organo-zinc/phosphate/silicate.

3 . The composition according to claim 1 , wherein the non-chromated corrosion inhibitor is a strontium aluminum polyphosphate.

4 . The composition according to claim 1 , wherein the non-chromated corrosion inhibitor is a zinc aluminum polyphosphate.

5 . A composition comprising:
a deformable tacky polyurethane polymer which is the reaction product of a polyisocyanate, a polyol and a mono-hydroxy tackifier; and two or more non-chromated corrosion inhibitors selected from the group:
an organo-zinc/phosphate/silicate;
a strontium aluminum polyphosphate
a zinc aluminum polyphosphate.

6 . The composition according to claim 1 , wherein the mono-hydroxy tackifier is a compound which may be derived from resin.

7 . The composition according to claim 1 , wherein the mono-hydroxy tackifier is a compound which may be derived from rosin.

8 . The composition according to claim 1 , wherein the mono-hydroxy tackifier is a compound which may be derived from a resin acid.

9 . The composition according to claim 1 , wherein the mono-hydroxy tackifier is a compound which is polycyclic.

10 . The composition according to claim 1 , wherein the mono-hydroxy tackifier is a compound which is tricyclic.

11 . The composition according to claim 1 , wherein the mono-hydroxy tackifier has a molecular weight of greater than 200.

12 . The composition according to claim 1 , wherein the mono-hydroxy tackifier has a molecular weight of greater than 250.

13 . The composition according to claim 1 , wherein the mono-hydroxy tackifier is hydroabietyl alcohol.

14 . The composition according to claim 1 , wherein the polyisocyanate is a multifunctional polyisocyanate having a functionality of greater than 2.

15 . The composition according to claim 1 , wherein the polyol has a molecular weight of greater than 500.

16 . The composition according to claim 1 , wherein the polyol has a molecular weight of greater than 700.

17 . The composition according to claim 1 , wherein the polyol is a hydroxyl-terminated polybutadiene.

18 . The composition according to claim 1 , wherein the deformable tacky polyurethane polymer further comprises surface modified silica nanoparticles.

19 . The composition according to claim 1 , wherein the deformable tacky polyurethane polymer further comprises glass bubbles.

20 . The composition according to claim 1 , wherein the deformable tacky polyurethane polymer further comprises fiber filler particles.

21 . The composition according to claim 1 , wherein the deformable tacky polyurethane polymer further comprises surface modified silica nanoparticles, glass bubbles and fiber filler particles.

22 . A flexible gasketing tape comprising the composition of claim 1 , having a thickness of greater than 0.5 mm and less than 5 mm.

Assignees

• 3M Innovative Properties Co

Inventors

• Falteisek Steven L

Classifications

• C08G18/69 Primary

  Polymers of conjugated dienes {(hydrogenated polymers of conjugated dienes C08G18/6208)} · CPC title

• C08K7/28

  Glass · CPC title

• C08K2003/327

  Aluminium phosphate · CPC title

• C08K5/56

  Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond · CPC title

• C08L75/04 Primary

  Polyurethanes · CPC title