Dissolvable cementitious composite ingredient packet

Patent metadata

Field	Value
Publication number	US-2016347663-A1
Application number	US-201615233158-A
Country	US
Kind code	A1
Filing date	Aug 10, 2016
Priority date	Jan 30, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

A packaged composition may include a package made from a water-soluble polymer material. The package may be configured to contain a cementitious composition. The cementitious composition may include water in the form of microencapsulated water spheres and high alumina cement.

First claim

1 . A packaged composition, comprising:
a package made from a water-soluble polymer material, the package containing a cementitious composition, the cementitious composition comprising: water in the form of microencapsulated water spheres; and high alumina cement.

2 . The packaged composition of claim 1 , further including:
a metallic coagent; and a peroxide crosslinking initiator.

3 . The packaged composition of claim 1 , wherein the water-soluble polymer material is polyvinyl alcohol comprising saponified polyvinyl alcohol acetate (PVAA) with a saponification level of greater than or equal to about 85%.

4 . The packaged composition of claim 1 , wherein the water has a pH below 7.

5 . The packaged composition of claim 2 , further including an organic acid retardant.

6 . The packaged composition of claim 1 , wherein proportions of ingredients of the composition and the package by weight comprise:
90-110 parts polyvinyl alcohol; 150-250 parts water; and 1200-3000 parts high alumina cement (HAC).

7 . The packaged composition of claim 6 , wherein the water-soluble polymer material is polyvinyl alcohol comprising saponified polyvinyl alcohol acetate (PVAA) with a saponification level of greater than or equal to about 85%.

8 . The packaged composition of claim 7 , further including 10-30 parts by weight of an organic acid retardant selected from the group comprising: acetic acid, citric acid, tartartic acid, succinic acid, and polymeric acids such as polyacrylic acid.

9 . The packaged composition of claim 1 , wherein the microencapsulated water spheres are configured to burst and release the water upon mixing of the package containing the cementitious composition in a high shear mixing procedure.

10 . A macro-defect-free (MDF) cementitious composition, comprising:
90-110 parts by weight polyvinyl alcohol; 150-250 parts by weight water; and 1200-3000 parts by weight high alumina cement (HAC).

11 . The MDF cementitious composition of claim 10 , further including:
30-100 parts by weight of a metallic coagent; and 3-30 parts by weight of a peroxide crosslinking initiator.

12 . The MDF cementitious composition of claim 11 , wherein the polyvinyl alcohol is a saponified polyvinyl alcohol acetate (PVAA) with a saponification level of greater than or equal to about 85%.

13 . The MDF cementitious composition of 12, further including 10-30 parts by weight of an organic acid retardant selected from the group comprising: acetic acid, citric acid, tartartic acid, succinic acid, and polymeric acids such as polyacrylic acid.

14 . The MDF cementitious composition of claim 11 , wherein the metallic coagent is selected from the group comprising: zinc diacrylate (ZDA), zinc monoacrylate (ZMA), zinc dimethacrylate (ZDMA), calcium diacrylate (CDA), aluminum triacrylate, and magnesium diacrylate.

15 . The MDF cementitious composition of claim 11 , wherein the peroxide crosslinking agent is selected from the group comprising: dicumyl peroxide (tradename DI-CUP), a,a′-bis(tert-butylperoxy)diisopropylbenzene (tradename VUL-CUP), 1,1-di(tert-butylperoxy)-3,3,5-trimethylcyclohexane (tradename LUPEROX 231), n-butyl-4,4-di(t-butylperoxy)valerate (tradename LUPEROX 230), and lower-temperature peroxides such as methyl ethyl ketone peroxide (MEKP) and hydrogen peroxide.

16 . A method of preparing a package of a MDF cementitious composition, the method comprising:
fabricating a bag from polyvinyl alcohol comprising 85% saponified polyvinyl alcohol acetate; adding dry ingredients to the bag including high alumina cement (HAC); and adding water to the bag in the form of microencapsulated water spheres.

17 . The method of claim 16 , further including adding a metallic coagent, a peroxide crosslinking initiator, and an organic acid retardant to the dry ingredients in the bag.

18 . The method of claim 17 , wherein the package of a MDF cementitious composition is prepared with:
90-110 parts by weight of the polyvinyl alcohol bag; 150-250 parts by weight of the water in the form of microencapsulated water spheres; 1200-3000 parts by weight of the high alumina cement (HAC); 30-100 parts by weight of the metallic coagent; 3-30 parts by weight of the peroxide crosslinking initiator; and 10-30 parts by weight of the organic acid retardant.

19 . The method of claim 18 , wherein the metallic coagent is selected from the group comprising: zinc diacrylate (ZDA), zinc monoacrylate (ZMA), zinc dimethacrylate (ZDMA), calcium diacrylate (CDA), aluminum triacrylate, and magnesium diacrylate.

20 . The method of claim 18 , wherein the peroxide crosslinking agent is selected from the group comprising: dicumyl peroxide (tradename DI-CUP), a,a′-bis(tert-butylperoxy)diisopropylbenzene (tradename VUL-CUP), 1,1-di(tert-butylperoxy)-3,3,5-trimethylcyclohexane (tradename LUPEROX 231), n-butyl-4,4-di(t-butylperoxy)valerate (tradename LUPEROX 230), and lower-temperature peroxides such as methyl ethyl ketone peroxide (MEKP) and hydrogen peroxide.

Assignees

• Caterpillar Inc

Inventors

• Amstutz Aaron K

Classifications

• C04B2103/0053

  Water-soluble polymers · CPC title

• B65B3/02

  Machines characterised by the incorporation of means for making the containers or receptacles · CPC title

• C04B16/04

  Macromolecular compounds (C04B16/02 takes precedence) · CPC title

• B65D65/46

  Applications of disintegrable, dissolvable or edible materials · CPC title

• C04B28/06 Primary

  Aluminous cements (monolithic refractories or refractory mortars C04B35/66) · CPC title