JPS55163602A - Arm pipe - Google Patents

Arm pipe

Info

Publication number
JPS55163602A
JPS55163602A JP6940979A JP6940979A JPS55163602A JP S55163602 A JPS55163602 A JP S55163602A JP 6940979 A JP6940979 A JP 6940979A JP 6940979 A JP6940979 A JP 6940979A JP S55163602 A JPS55163602 A JP S55163602A
Authority
JP
Japan
Prior art keywords
polyvinyl chloride
glass transition
normal temperature
thermoplastic resin
transition point
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6940979A
Other languages
Japanese (ja)
Other versions
JPS6031004B2 (en
Inventor
Nobuhiro Tsukagoshi
Etsuro Nemoto
Shinichi Yokozeki
Sumio Hagiwara
Shunichi Yoshino
Yasuyuki Arai
Kazuyoshi Kobayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP6940979A priority Critical patent/JPS6031004B2/en
Priority to US06/147,866 priority patent/US4404315A/en
Priority to GB8015804A priority patent/GB2051106B/en
Priority to DE3050026A priority patent/DE3050026C2/en
Priority to DE3019121A priority patent/DE3019121C2/en
Priority to DE19803050025 priority patent/DE3050025C2/en
Publication of JPS55163602A publication Critical patent/JPS55163602A/en
Publication of JPS6031004B2 publication Critical patent/JPS6031004B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a pipe of a light weight and high rigidity along with a high specific modulus and high internal loss, by using several types of materials having a higher and lower glass transition point than the normal temperature such as the polyvinyl chloride, polyvinylidene chloride and the like for the thermoplastic resin.
CONSTITUTION: Polyvinyl chloride, a copolymer of polyvinyl chloride with vinyl acetate and the like having a higher glass transition point than the normal temperature is used in combination with polyvinylidene chloride, a copolymer of polyvinylidene chloride with polyvinyl chloride or others having a lower glass transition point than the normal temperature each as the thermoplastic resin. For the compounding of the graphite powder and the thermoplastic resin, the elasticity can be increased by the graphite powder in the compounding range of, for example, 10W 90wt% of graphite powder and 90W10wt% of resin each. In this way, a light- weight, high-rigidity and high-specific modulus arm pipe with a large internal loss and excellent characteristics, can be produced in expensively.
COPYRIGHT: (C)1980,JPO&Japio
JP6940979A 1979-05-05 1979-06-05 arm pipe Expired JPS6031004B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP6940979A JPS6031004B2 (en) 1979-06-05 1979-06-05 arm pipe
US06/147,866 US4404315A (en) 1979-05-05 1980-05-08 Molding compositions and diaphragms, arm pipes and head shells molded therefrom
GB8015804A GB2051106B (en) 1979-05-28 1980-05-13 Moulding compositions and diaphragms arm pipes and head shells moulded therefrom
DE3050026A DE3050026C2 (en) 1979-05-28 1980-05-20 Acoustic membrane
DE3019121A DE3019121C2 (en) 1979-05-28 1980-05-20 Molding compound
DE19803050025 DE3050025C2 (en) 1979-05-28 1980-05-20 Tube-like arm for acoustic devices or audio head housings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6940979A JPS6031004B2 (en) 1979-06-05 1979-06-05 arm pipe

Publications (2)

Publication Number Publication Date
JPS55163602A true JPS55163602A (en) 1980-12-19
JPS6031004B2 JPS6031004B2 (en) 1985-07-19

Family

ID=13401770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6940979A Expired JPS6031004B2 (en) 1979-05-05 1979-06-05 arm pipe

Country Status (1)

Country Link
JP (1) JPS6031004B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786831A (en) * 1980-11-20 1982-05-31 Fujitsu Ltd Pattern forming material
JPS6161601U (en) * 1984-09-28 1986-04-25

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63137404U (en) * 1987-03-03 1988-09-09
JPS63172004U (en) * 1987-04-30 1988-11-09

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5786831A (en) * 1980-11-20 1982-05-31 Fujitsu Ltd Pattern forming material
JPS6161601U (en) * 1984-09-28 1986-04-25

Also Published As

Publication number Publication date
JPS6031004B2 (en) 1985-07-19

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