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Abrasive composition

A composition and abrasive technology, applied in the direction of polishing compositions containing abrasives, other chemical processes, chemical instruments and methods, etc., to achieve the effect of high surface finish and high cutting rate

Active Publication Date: 2017-08-01
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this oxidation is a surface phenomenon, it may be difficult to remove due to the inherent toughness of the gel coat

Method used

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Embodiment approach

[0053] 1. An abrasive composition comprising: an organic solvent; a nonionic surfactant comprising a block copolymer of polypropylene oxide and polyethylene oxide; particulate abrasives; water; and a cosurfactant which, in combination with the remaining components of the abrasive composition, causes the abrasive composition to form a stable oil-in-water emulsion.

[0054] 2. The composition according to embodiment 1, wherein the nonionic surfactant has a hydrophilic-lipophilic balance in the range of 1 to 12.

[0055] 3. The composition according to embodiment 2, wherein the nonionic surfactant has a hydrophilic-lipophilic balance in the range of 1 to 7.

[0056] 4. The composition according to any one of embodiments 1 to 3, wherein the cosurfactant is nonionic and has a hydrophilic-lipophilic balance in the range of 10 to 20.

[0057] 5. The composition according to any one of embodiments 1 to 4, wherein the organic solvent is an aliphatic hydrocarbon present in an amount ra...

Embodiment 1

[0123] A 400 gram batch of polishing compound was prepared as follows. 64 grams of Exxsol D80, 20 grams of Tween 80 and 12 grams of Parol 70 were added to a mixer (Dispermat CV2-FHV, obtained from VMA-Getzmann, Reichshof, Germany) and mixed for 15 minutes at approximately 23°C. Then, 2 grams of triethanolamine, 222.6 grams of water, and 8 grams of glycerin were added to the mixer and mixed under low shear for 10-15 minutes. Then 60 grams of Grind-1, 4 grams of NIS1 and 0.4 grams of Kathon CG were added and mixing continued until a uniform dispersion was formed (approximately 15 minutes). 7 grams of Acusol 820 were slowly added to the dispersion while increasing the shear rate. Mixing was continued for an additional 30 minutes under high shear.

Embodiment 2

[0125] The procedure generally described in Example 1 was repeated, replacing 60 grams of Abrasive-1 with 60 grams of Abrasive-2.

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Abstract

Provided herein are abrasive compositions that use surfactants containing block copolymers of both propylene oxide and ethylene oxide moieties. Abrasive compositions derived from these copolymers were capable of providing both superior levels of cut rate while preserving a high quality surface finish on gelcoat surfaces comparable to those achieved using conventional rubbing compounds.

Description

technical field [0001] Abrasive compositions useful for abrading substrates are provided. More particularly, such compositions are suitable for grinding gelcoat substrates, such as those found in marine applications. Background technique [0002] Abrasives are commonly used in industrial and commercial applications to impart a desired surface finish or treatment to substrates. The breadth of these applications explains the myriad of structural and chemical classes of abrasive solutions currently available on the market. [0003] One type of abrasive composition is based on compounds made of hard particles suspended in a soft medium such as a liquid, paste or wax. These compositions can be disposed on a suitable backing such as a cloth or polishing pad and wiped onto the substrate to remove scratches. The wiping process can be performed manually or with the assistance of power tools. The liquid, paste or wax acts as a binder that retains the particulate abrasive on the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14
CPCC09K3/1463B29C2073/262C09G1/02
Inventor 理查德·S·史密斯道格拉斯·A·戴维斯
Owner 3M INNOVATIVE PROPERTIES CO
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