Process for making high-pressure sheet gasketing materials

A technology for compressing and sealing sheets, applied in sealing devices, chemical instruments and methods, and other chemical processes, etc., can solve problems such as adverse effects on material properties and sealing performance, rough sheet surfaces, and impact on aesthetics.

Inactive Publication Date: 2009-09-09
GARLOCK SEALING TECH LLC (US)
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even a small amount of accumulation on the chill roll will result in a rough surface of the sheet, which not only affects the aes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Process for making high-pressure sheet gasketing materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Embodiments are described more fully below in sufficient detail to enable those skilled in the art to practice the systems and methods. Embodiments may, however, be embodied in many different forms, and should not be construed as limited to the embodiments described herein. Accordingly, the following detailed description is not limiting.

[0020] Embodiments of the present technology use, for example, tert-butyl acetate or other suitable organic solvents with similar chemical, physical and toxicological properties as solvents in the process of mixing the bulk dough for the press plate process. Thus, in an embodiment of the present technology, a predetermined amount of tert-butyl butyrate is added to the mixer. Subsequently, a predetermined amount of elastomer (for example natural rubber and / or nitrile rubber) is also introduced into the mixer. Once the elastomer is dissolved in the tert-butyl acetate, the other ingredients are mixed into it. Such other ingredients in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method for making high-pressure sheet gasketing material is provided that employs an elastomer, such as natural rubber and/or acylonitrile-butadiene rubber. Tert-butyl acetate is added to dissolve the elastomer. Other components may then be mixed with the dissolved elastomer and may include, for example, antioxidants, colorants, curing agents, curing accelerators, reinforcing fillers, and fibers such as organic and/or mineral fibers. The resulting dough may be formed into a high-pressure sheets, for use as gasketing material, using a two-roll sheeter machine, or the like.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to U.S. Provisional Patent Application No. 60 / 873,336, entitled "AN IMPROVED PROCES S FOR MAKING HIGHPRES SURE SHEET GASKETING MATERIALS," filed December 7, 2006, which provides The patent application is hereby incorporated by reference in its entirety. Background technique [0003] High-pressure sheets used as sealing materials are traditionally prepared by mixing a fibrous substrate with a rubber binder and subjecting the resulting mixture to pressure and high temperature. Typically, such sheets are prepared on a two-roll tablet press, such as a Troester machine, having a pair of rollers arranged one above the other. The lower roll is usually a larger heated roll and the upper roll is usually a smaller unheated roll. In order to prepare conventional boards on such machines, it is first necessary to accumulate a certain amount of starting compound on heated rolls. Then, a certain amou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09K3/10C08J5/04
CPCC09K2200/0607C09K2200/0612C08J5/042C09K2200/0208C08J5/046C09K2200/0239C08J2321/00C08J5/044C08J5/047C09K3/1028C09K2200/0692C09K2200/0252C09K3/10C09K2200/0265C08J5/0405C09K3/1006C08L7/00C08L9/02C09K2003/1096
Inventor 马修·C·缪尔肯尼思·希尔迈克尔·P·麦克纳利
Owner GARLOCK SEALING TECH LLC (US)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap