Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat-proof bottle cap sealing material and preparation method thereof

A sealing material and bottle cap technology, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as affecting the taste of filled beverages, threatening consumers' health, and unable to withstand hot filling sterilization.

Inactive Publication Date: 2008-10-29
EAST CHINA UNIV OF SCI & TECH
View PDF0 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to solve the problem that there is plasticizer precipitation in soft polyvinyl chloride bottle cap sealing materials, thereby affecting the mouthfeel of filled beverages and threatening the health of consumers; It is relatively low and cannot bear the problems of hot filling of tea beverages and fruit juice beverages and 121°C / 30min high-pressure steam sterilization of soy milk beverages. A preparation method for heat-resistant bottle cap sealing materials is provided, so that the prepared heat-resistant bottle caps are sealed The material can be used in conventional thermoplastic forming processes to produce bottle cap seals suitable for beer, carbonated drinks, juice drinks, milk drinks, health drinks, coffee drinks and tea drinks by extrusion, injection molding and molding methods

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The material provided by the invention is formulated by weight ratio from the following raw materials:

[0034] Isotactic homopolypropylene iPP 100 parts

[0035] Polyolefin thermoplastic elastomer POE 120 parts

[0036] 40 parts liquid paraffin

[0037] Filler CaCO 3 10 copies

[0038] The iPP, POE and CaCO in the above raw materials 3 During high-speed stirring, liquid paraffin was added and stirred for 10 minutes to obtain a well-stirred mixture. After the mixture was kneaded in an internal mixer at 200° C. for 10 minutes, a thermoplastically processable heat-resistant bottle cap sealing material was obtained.

Embodiment 2

[0040] The material provided by the invention is formulated by weight ratio from the following raw materials:

[0041] Isotactic homopolypropylene iPP 100 parts

[0042] Styrenic thermoplastic elastomer SEBS 100 parts

[0043] 50 parts liquid paraffin

[0044] Filler CaCO 3 10 copies

[0045] The iPP, SEBS and CaCO in the above raw materials 3 During high-speed stirring, liquid paraffin was added and stirred for 5 minutes to obtain a well-stirred mixture. After the mixture was kneaded in an internal mixer at 180° C. for 15 minutes, a thermoplastically processable heat-resistant bottle cap sealing material was obtained.

Embodiment 3

[0047] The material provided by the invention is formulated by weight ratio from the following raw materials:

[0048] Block copolymerized polypropylene bPP 100 parts

[0049] Styrenic thermoplastic elastomer SBS 90 parts

[0050] Naphthenic oil 40 parts

[0051] Add naphthenic oil to the bPP and SBS in the above raw materials during high-speed stirring and stir for 10 minutes to obtain a uniformly stirred mixture. After the mixture was kneaded in an internal mixer at 200° C. for 10 minutes, a thermoplastically processable heat-resistant bottle cap sealing material was obtained.

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

The invention discloses a heat-resistant bottle lid sealing material and the preparation method thereof. The method specifically comprises the following steps: adding thermoplastic elastomer, softening oil and filler into polypropylene, and passing through a mixing roll machine and an internal mixing or extruding to obtain the thermoplastically-processable heat-resistant bottle lid sealing material. The material can be made into final products by mold pressing, extruding, injection molding, etc., and used for packaging beer, carbonated beverages, fruit juice beverages, milk beverages, healthy beverages, coffee beverages and tea beverages. Compared with the widely-used soft polyvinyl chloride and common polyvinyl chloride bottle lid sealing material at present, the heat-resistant bottle lid sealing material can bear pasteurization at 90DEG C / 15min and high-pressure steam sterilization at 121DEG C / 30min.

Description

technical field [0001] The invention relates to a heat-resistant bottle cap sealing material, more specifically to a composition and a preparation method of a heat-resistant bottle cap sealing material, and belongs to the fields of polymer blending, polymer molding processing, and polymer packaging materials. Background technique [0002] On beer bottles, beverage bottles and other glass and plastic bottles, a large number of crown caps made of tinplate or injection-molded plastic caps are used. A layer of soft and elastic sealing material must be lined in the crown caps or plastic caps as a seal. pad. From the aspects of production efficiency, sealing effect and cost, the sealing gaskets of crown caps and plastic caps are mainly made of soft polyvinyl chloride materials and ordinary polyolefin elastomer materials. Soft polyvinyl chloride material is made of polyvinyl chloride resin, plasticizer, stabilizer, lubricant and other substances through high-speed mixer mixing, ex...

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): C09K3/10C08L23/12C08L53/00C08K3/34B29C47/40B29C47/92C08L91/06B29C48/92
CPCB29C47/92
Inventor 潘泳康王庆海唐颂超王婷兰
Owner EAST CHINA UNIV OF SCI & TECH