Ethylene-vinyl acetate copolymer waxes

A vinyl acetate and copolymer technology, used in plastic/resin/wax insulators, organic insulators, thin material processing, etc., can solve problems such as increased workload and cost, and achieve the effect of reducing labor and cost

Inactive Publication Date: 2004-04-07
HONEYWELL INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal of prior art coatings and films entails an increase in the amount of work required and the costs associated therewith, which is disadvantageous in the application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0037] Table 1

Embodiment 10-14

[0039] Five EVA copolymer waxes (numbered 10-14) were produced as described above. The Mn, Mw, Mw / Mn and Mz of each copolymer were determined by known GPC methods. The data are shown in Table 2.

[0040] EVA wax

Embodiment 15-38

[0045] 24 EVA waxes (numbered 15-38) were produced by high pressure free radical polymerization at or below the lower end of the temperature range previously used. These waxes were measured for vinyl acetate weight percent, Mettler dropping point, viscosity and hardness data using standard methods. These data are reported in Table 4.

[0046] Number / performance

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PUM

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Abstract

Disclosed are ethylene-vinyl acetate ('EVA') copolymer waxes comprising at least about 10 % by weight, of moieties derived from vinyl acetate, the copolymer having a polydispersity ('Mw / Mn') of at least about 6 and a molecular weight ('Mw') of from about 15,000 to about 40,000. Also disclosed are coatings and films comprising the present EVA waxes that exhibit sufficient adherence to and removability from a wide range of substrates.

Description

[0001] Related applications [0002] This application claims the benefit of US Provisional Application No. 60 / 213,099, filed June 21, 2000, and entitled "Ethylene Vinyl Acetate Copolymer." Field of Invention [0003] The present invention generally relates to ethylene-vinyl acetate ("EVA") copolymers, and more particularly, to EVA copolymer waxes having a unique combination of properties that facilitate their use in a variety of applications , in particular, such as the height of the insulated conductor, the wire sheath can be peeled off. Background of the Invention [0004] Ethylene-vinyl acetate copolymer waxes are used in a variety of commercial applications and are of particular interest in making coatings and / or films that adhere to a variety of substrates. For example, because EVA waxes exhibit relatively strong adhesion properties, such waxes are added to plastic sheath compositions to form wire sheaths that...

Claims

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Application Information

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IPC IPC(8): C08F210/02H01B3/44
CPCH01B3/441C08F210/02Y10T428/2933Y10T428/294C08F2/00C08F218/08C08F2500/02C08F2500/23C08F2500/17C08F2500/03C08F2500/26C08F2500/04
Inventor 肖·T·夏
Owner HONEYWELL INT INC
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