Patent EP0528581A1 successfully refreshed from Google Patents.
Patent JPH02121584A successfully refreshed from Google Patents.
EP0326082A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Flame-retardant polypropylene resin composition
Assignee: JNC Corp
•
Filing: 1989-01-24
•
Granted: —
•
Expires: 2009-01-24
Abstract
Abstract The present invention disclosed herein is connected with a polypropylene resin composition giving off no corrosive and poisonous gases, having excellent moldability, providing molded articles with excellent mechanical strength and high flame retardance. The composition of the present invention is composed of predetermined amounts of a polyprolylene resin, a polyethylene resin, polyammonium phosphate or polyammonium phosphate modified by melamine resin and a 1,3,5-triazine derivative. This composition may additionally contain a predetermined amount of one or more of specific thiophosphites and may further contain a predetermined amount of an olefinic synthetic rubber or elastomer and a crosslinking agent.
Inventors
- 👤 Shinichi Akitaya
- 👤 Toru Fukazawa
- 👤 Yutaka Nozokido
- 👤 Nobuchika Tabata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 18:25
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08K; C08K3/00; C08K3/32; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34926; C08L23/04; C08L23/06; C08L53/00; C08L23/16; C08L79/00; C08L79/04; C08L79/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A flame-retardant polypropylene resin composition comprising: (A) a polyethylene resin 5 to 25% by weight (B) polyammonium phosphate or polyammonium phosphate modified by melamine resin 12 to 25% by weight (C) a 1,3,5-triazine derivative having the structure represented by the general formula (I) 5 to 10% by weight wherein X is a morpholino group or a piperidino group, Y is a divalent group of piperazine, and n is an integer of 2 to 50, (D) a polypropylene resin residue the total amount of these components (A) to (D) being 100% by weight.
Claim 2
Dependent Claim
92 words
A flame-retardant polypropylene resin composition comprising: (A) a polyethylene resin 5 to 25% by weight (B) polyammonium phosphate or polyammonium phosphate modified by melamine resin 12 to 25% by weight (C) a 1,3,5-triazine derivative having the structure represented by the general formula (I) 5 to 10% by weight wherein X is a morpholino group or a piperidino group, Y is a divalent group of piperazine, and n is an integer of 2 to 50, (D) a polypropylene resin residue the total amount of these components (A) to (D) being 100% by weight.
Claim 3
Dependent Claim
59 words
A flame-retardant polypropylene resin composition according to Claim 1 wherein said polypropylene resin is one or a mixture of two or more of a crystalline propylene homopolymer, or crystalline copolymers each of which is composed of the propylene main component and at least one selected from the group consisting of ethylene, butene-1, pentene-1, hexene-1, 4-methylpentene-1, heptene-1, octene-1 and decene-1.
Claim 4
Dependent Claim
201 words
A flame-retardant polypropylene resin composition comprising: (A) a polyethylene resin 5 to 30% by weight (B) polyammonium phosphate or polyammonium phosphate modified by melamine resin 12 to 25% by weight (C) a 1,3,5-triazine derivative having the structure represented by the general formula (I) 5 to 10% by weight wherein X is a morpholino group or a piperidino group, Y is a divalent group of piperazine, and n is an integer of 2 to 50, (E) a thiophosphite selected from compounds represented by the general formulae (II), (III), (IV) and (V) 0.05 to 5% by weight wherein R₁ is an alkyl group having 6 or more carbon atoms, a cycloalkyl group or an aryl group; R₂ is -SR₂′ or -R₂′; R₃ is -SR₃′ or -R₃′; -R₂′ and -R₃′ are identical or different and each of them is an alkyl group, a cycloalkyl group or an aryl group; X is -(CH₂) n -, -(CH₂) n -O-(CH₂) m - or wherein n, m and ℓ are identical or different and they are integers of 2 to 6, (F) a crosslinking agent 1 to 15% by weight (D) a polypropylene resin residue the total amount of these components (A) to (F) being 100% by weight.
Claim 5
Dependent Claim
201 words
A flame-retardant polypropylene resin composition comprising: (A) a polyethylene resin 5 to 30% by weight (B) polyammonium phosphate or polyammonium phosphate modified by melamine resin 12 to 25% by weight (C) a 1,3,5-triazine derivative having the structure represented by the general formula (I) 5 to 10% by weight wherein X is a morpholino group or a piperidino group, Y is a divalent group of piperazine, and n is an integer of 2 to 50, (E) a thiophosphite selected from compounds represented by the general formulae (II), (III), (IV) and (V) 0.05 to 5% by weight wherein R₁ is an alkyl group having 6 or more carbon atoms, a cycloalkyl group or an aryl group; R₂ is -SR₂′ or -R₂′; R₃ is -SR₃′ or -R₃′; -R₂′ and -R₃′ are identical or different and each of them is an alkyl group, a cycloalkyl group or an aryl group; X is -(CH₂) n -, -(CH₂) n -O-(CH₂) m - or wherein n, m and ℓ are identical or different and they are integers of 2 to 6, (F) a crosslinking agent 1 to 15% by weight (D) a polypropylene resin residue the total amount of these components (A) to (F) being 100% by weight.
Claim 6
Dependent Claim
46 words
A flame-retardant polypropylene resin composition comprising the above-mentioned components (A), (B), (C), (D), (E) and (F), and additionally (G) an olefinic synthetic rubber or elastomer 5 to 30% by weight the amount of said polypropylene resin being partially replaced with the amount of said component (G).
Claim 7
Dependent Claim
46 words
A flame-retardant polypropylene resin composition comprising the above-mentioned components (A), (B), (C), (D), (E) and (F), and additionally (G) an olefinic synthetic rubber or elastomer 5 to 30% by weight the amount of said polypropylene resin being partially replaced with the amount of said component (G).
Claim 8
Dependent Claim
62 words
A flame-retardant polypropylene resin composition accroding to Claim 3 wherein said polypropylene resin is one or a mixture of two or more of a crystalline propylene homopolymer, or crystalline copolymers each of which is composed of 70% by weight or more of propylene and at least one selected from the group consisting of ethylene, butene-1, pentene-1, hexene-1, 4-methylpentene-1, heptene-1, octene-1 and decene-1.
Claim 9
Dependent Claim
62 words
A flame-retardant polypropylene resin composition accroding to Claim 4 wherein said polypropylene resin is one or a mixture of two or more of a crystalline propylene homopolymer, or crystalline copolymers each of which is composed of 70% by weight or more of propylene and at least one selected from the group consisting of ethylene, butene-1, pentene-1, hexene-1, 4-methylpentene-1, heptene-1, octene-1 and decene-1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.