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Carpet product and process for the manufacturing of a carpet product

A technology for carpets and products, applied in the field of manufacture, which can solve the problems of poor washability, high cost, etc.

Active Publication Date: 2016-06-08
WACKER CHEM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Styrenic emulsions are described as prior art binders for coating compositions for carpet materials, but these are said to be more expensive and have poorer wash durability and are not used in the present invention

Method used

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  • Carpet product and process for the manufacturing of a carpet product

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0063] Preparation of aqueous vinyl acetate ethylene copolymer dispersion

[0064] In the preparation of aqueous vinyl acetate ethylene copolymer dispersion, all protective colloids or all emulsifiers can form the initial filling, or all protective colloids or all emulsifiers can form feed, or part of the protective colloids or emulsifiers An initial charge can be formed, and the rest can form a feed after polymerization has been initiated. It can be fed separately (in space and time), or all or some of the components can be fed after pre-emulsification. In a preferred embodiment, all protective colloids and optionally all emulsifiers are initially loaded into the reactor.

[0065] All the monomers can form the initial charge, or all the monomers can form the feed, or part of the monomers can form the initial charge, and the rest can form the feed after the polymerization has started. It can be fed separately (in space and time), or all or some of the components can be fed after...

Embodiment

[0087] The following polymer dispersions were used to prepare carpet products.

[0088] Vinyl acetate-ethylene copolymer dispersion (VAE):

[0089] An aqueous dispersion of vinyl acetate ethylene copolymer having a solid content of about 60% by weight is used. Use protective colloids and non-ionic surfactants to stabilize the dispersion. The copolymer composition is about 85% by weight of vinyl acetate and about 15% by weight of ethylene, and has a glass transition temperature Tg of about 2°C.

[0090] Styrene butadiene copolymer dispersion (SBR):

[0091] An aqueous dispersion of a styrene butadiene copolymer having a solid content of about 55 wt% is used. Stabilize the dispersion with anionic surfactants. The copolymer composition is about 65% by weight of styrene and about 35% by weight of butadiene, and has a glass transition temperature Tg of about 11°C.

[0092] Carpet coating composition:

[0093] filler:

[0094] The filler used is calcium carbonate (Carmeuse manufactured by C...

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Abstract

A carpet product includes in sequence a) a primary backing material having a back side and a face side, with carpet fibers extending from the face side to form a carpet pile and also passing through the primary backing material and forming loops on the back side; b) a primary coating layer on the loops, including a vinyl acetate ethylene copolymer and present at from 542 to 1085 g / m2 (16 to 32 oz. / yd2) on a dry solids basis; c) a secondary coating layer on the primary coating layer, including a styrene-butadiene copolymer; and d) a secondary backing material on the secondary coating layer and adhered thereby to the primary coating layer.

Description

[0001] Citation of related applications [0002] This application claims the priority rights of U.S. Provisional Patent Application No. 61 / 895,149 filed on October 24, 2013, the entire contents of which are incorporated herein by reference. Technical field [0003] The present invention relates to carpet products and methods for manufacturing them. Background technique [0004] Carpets generally include a primary backing material (primarybacking material) to which carpet fibers are attached to form a carpet pile on the front, and a primary coating (primary coating layer) on the back of the primary backing material to fix the carpet fibers To the main backing. In order to improve the dimensional stability, the secondary backing material is usually fixed to the primary backing material by means of a secondary coating layer. [0005] The primary and secondary coatings are usually formed from aqueous polymer dispersions, such as aqueous vinyl acetate ethylene copolymer dispersions and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N7/00
CPCD06N7/0073D06N7/0081D06N2203/042D06N2203/045D06N2203/047D06N2205/045D06N2209/103D06N2213/065D06N2205/023D06N2211/066
Inventor 丹尼斯·萨格罗纳德·约瑟夫·潘格拉齐约翰·M·麦克卢尔肯
Owner WACKER CHEM GMBH