Dissolvable cementitious composite ingredient packet

Patent metadata

Field	Value
Publication number	US-9650300-B2
Application number	US-201615233158-A
Country	US
Kind code	B2
Filing date	Aug 10, 2016
Priority date	Jan 30, 2015
Publication date	May 16, 2017
Grant date	May 16, 2017

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

What is claimed is:

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

2. 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%.

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

4. The packaged composition of claim 1 , further including an organic acid retardant.

5. 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).

6. The packaged composition of claim 5 , 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%.

7. The packaged composition of claim 6 , 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.

8. 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.

Assignees

• Caterpillar Inc

Inventors

• Amstutz Aaron K

Classifications

• C04B22/068

  Peroxides, e.g. hydrogen peroxide · CPC title

• C04B24/40

  Compounds containing silicon, titanium or zirconium {or other organo-metallic compounds; Organo-clays; Organo-inorganic complexes} · CPC title

• C04B2111/00301

  Non-porous materials, e.g. macro-defect free [MDF] products · CPC title

• C04B24/2641

  Polyacrylates; Polymethacrylates · CPC title

• C04B2103/20

  Retarders · CPC title