US6071643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery jar material for sealed secondary battery and battery jar for sealed secondary battery using the same
Assignee: Idemitsu Petrochemical Co Ltd
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Filing: 1996-12-27
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Granted: 2000-06-06
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Expires: 2016-12-27
Abstract
Abstract A battery jar material for sealed secondary batteries comprising a resin composition which comprises 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether, or a resin composition which comprises 100 parts by weight of a resin component having the same composition as the above resin composition, 1 to 350 parts by weight of (D) an inorganic filler, and 0 to 5 parts by weight of (E) a polyphenylene ether modified with a polar group; and a battery jar for sealed secondary batteries made of this material. A battery jar material and a battery jar for sealed secondary batteries which show excellent heat resistance, resistance to electrolytes, resistance to oil and grease, electric insulation, mechanical strengths, and moldability and enable decrease in thickness are provided.
Inventors
- 👤 Shinji Chino
- 👤 Nobuyuki Satoh
- 👤 Koji Matsukawa
- 👤 Akihiko Okada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:23
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/10; H01M50/131; H01M50/133; H01M50/116; H01M50/121; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
129 words
A battery jar for sealed secondary batteries made from a resin composition which comprises 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein said battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 2
Dependent Claim
129 words
A battery jar for sealed secondary batteries made from a resin composition which comprises 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein said battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 3
Dependent Claim
166 words
A battery jar for sealed secondary batteries made from a resin composition which comprises 100 parts by weight of a resin component comprising 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether; 1 to 350 parts by weight of (D) an inorganic filler; and 0 to 5 parts by weight of (E) a polyphenylene ether modified with a polar group, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein said battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 4
Dependent Claim
166 words
A battery jar for sealed secondary batteries made from a resin composition which comprises 100 parts by weight of a resin component comprising 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether; 1 to 350 parts by weight of (D) an inorganic filler; and 0 to 5 parts by weight of (E) a polyphenylene ether modified with a polar group, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein said battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 5
Dependent Claim
36 words
A battery jar according to claim 1, wherein component (B) is at least one polymer selected from polypropylene, polyethylene, ethylene-propylene rubber, ethylene-propylene-diene rubber, hydrogenated styrene-butadiene-styrene block copolymers, hydrogenated styrene-butadiene-ethylene block copolymers, and hydrogenated styrene-isoprene-ethylene block copolymers.
Claim 6
Dependent Claim
36 words
A battery jar according to claim 2, wherein component (B) is at least one polymer selected from polypropylene, polyethylene, ethylene-propylene rubber, ethylene-propylene-diene rubber, hydrogenated styrene-butadiene-styrene block copolymers, hydrogenated styrene-butadiene-ethylene block copolymers, and hydrogenated styrene-isoprene-ethylene block copolymers.
Claim 7
Dependent Claim
14 words
A battery jar according to claim 2, wherein component (D) is a glass fiber.
Claim 8
Dependent Claim
144 words
In a sealed secondary battery including electrodes, electrolyte, a battery jar and a sealing plate, the improvement wherein the battery jar is made from a resin composition which comprises 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein the battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 9
Dependent Claim
144 words
In a sealed secondary battery including electrodes, electrolyte, a battery jar and a sealing plate, the improvement wherein the battery jar is made from a resin composition which comprises 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein the battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 10
Dependent Claim
181 words
In a sealed secondary battery including electrodes, electrolyte, a battery jar and a sealing plate, the improvement wherein the battery jar is made from a resin composition which comprises 100 parts by weight of a resin component comprising 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether; 1 to 350 parts by weight of (D) an inorganic filler; and 0 to 5 parts by weight of (E) a polyphenylene ether modified with a polar group, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein the battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 11
Dependent Claim
181 words
In a sealed secondary battery including electrodes, electrolyte, a battery jar and a sealing plate, the improvement wherein the battery jar is made from a resin composition which comprises 100 parts by weight of a resin component comprising 50 to 98% by weight of (A) a styrenic polymer having a syndiotactic configuration, 2 to 50% by weight of (B) at least one polymer selected from the group consisting of polyolefins and styrenic elastomers, and 0 to 10% by weight of (C) a polyphenylene ether; 1 to 350 parts by weight of (D) an inorganic filler; and 0 to 5 parts by weight of (E) a polyphenylene ether modified with a polar group, wherein said battery jar retains its shape when subjected to a temperature of 60° C. and an inner pressure of 2 kg/cm 2 or a temperature of 100° C. and an inner pressure of 1 kg/cm 2 and wherein the battery jar retains its shape and exhibits no more than a 5% weight loss when immersed in oil or grease and retained therein for 30 days at 100° C.
Claim 12
Dependent Claim
37 words
A sealed secondary battery according to claim 6, wherein component (B) is at least one polymer selected from polypropylene, polyethylene, ethylene-propylene rubber, ethylene-propylene-diene rubber, hydrogenated styrene-butadiene-styrene block copolymers, hydrogenated styrene-butadiene-ethylene block copolymers, and hydrogenated styrene-isoprene-ethylene block copolymers.
Claim 13
Dependent Claim
37 words
A sealed secondary battery according to claim 7, wherein component (B) is at least one polymer selected from polypropylene, polyethylene, ethylene-propylene rubber, ethylene-propylene-diene rubber, hydrogenated styrene-butadiene-styrene block copolymers, hydrogenated styrene-butadiene-ethylene block copolymers, and hydrogenated styrene-isoprene-ethylene block copolymers.
Claim 14
Dependent Claim
14 words
A sealed secondary battery according to claim 7, wherein component (D) is glass fiber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-06-06 | 2003-12-06 | 2004-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-06-06 | 2007-12-06 | 2008-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-06-06 | 2011-12-06 | 2012-06-06 | $7700.00 | Window Closed / Lapsed |