KR960002295B1 - Rubber composition for apex of tire - Google Patents

Rubber composition for apex of tire Download PDF

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Publication number
KR960002295B1
KR960002295B1 KR1019920000316A KR920000316A KR960002295B1 KR 960002295 B1 KR960002295 B1 KR 960002295B1 KR 1019920000316 A KR1019920000316 A KR 1019920000316A KR 920000316 A KR920000316 A KR 920000316A KR 960002295 B1 KR960002295 B1 KR 960002295B1
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KR
South Korea
Prior art keywords
apex
tire
rubber composition
phr
heat resistance
Prior art date
Application number
KR1019920000316A
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Korean (ko)
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KR930016483A (en
Inventor
오세철
강형술
권동은
Original Assignee
주식회사금호
윤양중
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Publication date
Application filed by 주식회사금호, 윤양중 filed Critical 주식회사금호
Priority to KR1019920000316A priority Critical patent/KR960002295B1/en
Publication of KR930016483A publication Critical patent/KR930016483A/en
Application granted granted Critical
Publication of KR960002295B1 publication Critical patent/KR960002295B1/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L7/00—Compositions of natural rubber
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/34—Heterocyclic compounds having nitrogen in the ring
    • C08K5/35—Heterocyclic compounds having nitrogen in the ring having also oxygen in the ring
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Tires In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The rubber composition for apex of tire comprises phenol formaldehyde resin of 5-25 PHR and small amt. of hexamethoxy methyl melamine(HMMA) donating methylene within natural rubber of 100 PHR as raw material. The obtd. apex has a higher hardness, and a good tortuous fatigue resistance and a heat resistance.

Description

타이어의 에이펙스용 고무조성물Rubber composition for apex of tire

본 발명은 고경도 에이펙스(APEX)의 제조를 위해 천연고무에 페놀 포름알데히드 수지 적량을 첨가하여 타이어용 에이펙스(APEX)의 물성을 개량하기 위한 타이어의 에이펙스용 고무조성물에 관한 것이다.The present invention relates to a rubber apex composition for a tire for improving the physical properties of an apex (APEX) by adding a suitable amount of phenol formaldehyde resin to natural rubber for the production of high hardness apex (APEX).

종래에는 타이어 비드 부위의 골심역할을 하는 에이펙스는 고경도가 요구되는 부위로 경도를 높이기 위해 카본 블랙과 유기물의 투입량을 조절하는 방법을 사용하였으나, 타이어의 저편평비 및 고성능(Low profile and High performance) 추세에서 카본 블랙 및 유기물 투입량 조절에 의한 경도의 상승방법은 한계가 있으며, 특히 이 방법은 내굴곡 피로 저항성 및 내열성에 있어서 열세를 나타냈었다.Conventionally, Apex, which serves as a core of tire bead areas, uses a method of adjusting carbon black and organic matter inputs to increase hardness to areas requiring high hardness, but low profile and high performance of tires In the trend, the method of increasing the hardness by controlling the carbon black and organic matter input is limited, and in particular, this method is inferior in bending fatigue resistance and heat resistance.

타이어 에어펙스 부위는 림과 근접한 부위로 타이어의 골심역할을 하며, 하이스티프니스, 좋은 내 굴곡 피로 저항성, 내열성 등이 요구되어 진다.The tire airpex part is a part of the tire that is close to the rim, and requires high stiffness, good flex fatigue resistance, and heat resistance.

특히, 고성능 타이어에서 에이펙스의 경향은 매우 단단하며, 본 발명에서는 이러한 고경도 물성의 유지를 위하여, 카본 블랙 및 유기물 투입량의 조절에 의존하는 과거 방법은 접착불량 및 내 굴곡 피로 저항성, 내열성 등에서 열등하며, 특히 일정수준 이상은 경도 상승이 힘든 문제점을 지니고 있었다. 본 발명은 상기와 같은 문제점을 해결하기 위한 것으로 이를 상세히 설명하면 다음과 같다.In particular, the tendency of apex in a high-performance tire is very hard, and in the present invention, in order to maintain such high hardness properties, the past methods that rely on the control of carbon black and organic matter input are inferior in adhesion failure, flex fatigue resistance, heat resistance, and the like. In particular, above a certain level, the hardness increase was difficult. The present invention is to solve the above problems and described in detail as follows.

본 발명은 천연고무 100PHR을 기중으로 하여 여기에 페놀 포름알데히드 레진 5~25PHR 및 메틸렌 공여체인 헥사 메톡시 메틸 멜라민(HEXA METHOXY METHYL MELAMINE ; H.M.M.A) 소량을 투입하여 가교결합에 의해 형성된 망상구조가 유황네트워크와의 결합에 의해 가류중 분자사슬의 운동성(Mobility)을 감소시켜 경도를 상승시켰으며, 내굴곡 피로 저항성 및 내열성에서 우수한 물성을 보였다.The present invention is based on 100PHR of natural rubber, phenol formaldehyde resin 5 ~ 25PHR and methylene donor hexa methoxy methyl melamine (HEXA METHOXY METHYL MELAMINE; HMMA) network structure formed by cross-linking sulfur network The bond with and reduced the mobility of the molecular chain in vulcanization, thereby increasing the hardness, and showed excellent physical properties in bending fatigue resistance and heat resistance.

본 발명에 따른 실시예를 들면 다음과 같다.Examples according to the present invention are as follows.

[실시예 1~4]EXAMPLES 1-4

Claims (1)

승용차용 타이어의 에이펙스 고무조성물에 있어서, 원료고무인 천연고무 100PHR을 기준으로 페놀 포름 알데히드수지 5~25PHR 및 메틸렌 공여체인 H.M.M.A 소량을 함유함을 특징으로 하는 승용차용 타이어 에이펙스용 고무조성물.An apex rubber composition for a passenger car tire, wherein the apex rubber composition for a passenger car tire apex is characterized by containing 5 to 25 PHR of phenol formaldehyde resin and a small amount of H.M.M.A as a methylene donor based on 100 PHR of natural rubber.
KR1019920000316A 1992-01-11 1992-01-11 Rubber composition for apex of tire KR960002295B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920000316A KR960002295B1 (en) 1992-01-11 1992-01-11 Rubber composition for apex of tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920000316A KR960002295B1 (en) 1992-01-11 1992-01-11 Rubber composition for apex of tire

Publications (2)

Publication Number Publication Date
KR930016483A KR930016483A (en) 1993-08-26
KR960002295B1 true KR960002295B1 (en) 1996-02-16

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ID=19327768

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920000316A KR960002295B1 (en) 1992-01-11 1992-01-11 Rubber composition for apex of tire

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010095931A (en) * 2000-04-12 2001-11-07 성훈용 The method for producing a V-PACKING of Mixed molding Consist of Synthetic rubber and phenol formaldehyd resins.
KR20020084991A (en) * 2001-05-03 2002-11-16 금호산업 주식회사 Apex rubber composition for radial tire

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KR930016483A (en) 1993-08-26

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