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US9453085B2 Active / In Force US ⏱️ 7.9 years remaining

Initiator composition for curing resin

Assignee: Wuhan Keda Marble Protective Materials Co Ltd
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Filing: 2014-09-21
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Granted: 2016-09-27
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Expires: 2034-09-21
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Abstract

Abstract An initiator composition, including at least two compounds represented by the chemical formula R—CO—O—O—CO—R and a compound represented by R 1 —O—O—R 2 , where R represents a C 2 -C 12 alkyl or a C 6 -C 10 aryl or substituted aryl, and R 1 and R 2 independently, at each occurrence, represent a C 1 -C 10 alkyl or a C 6 -C 10 aryl.

Inventors

  • 👤 Kunwen DU
  • 👤 Kunwu Du
  • 👤 Guofeng QIU
  • 👤 Panfeng MAO
  • 👤 Liya Wang

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:13
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C08F4/34; C08F299/00; C08F299/02; C08F299/04; C08F299/0442; C08F299/045; C08F4/38; C08G; C08G63/00; C08G63/91

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 61 words
An initiator composition, comprising 75 parts by weight of at least two first peroxides and 25 parts by weight of a second peroxide, wherein the at least two first peroxides comprise 25 parts by weight of benzoyl peroxide, 30 parts by weight of 2,4-dichlorobenzene acyl peroxide, and 20 parts by weight of lauroyl peroxide, and the second peroxide is di-t-butyl peroxide.
Claim 2
Dependent Claim 61 words
An initiator composition, comprising 75 parts by weight of at least two first peroxides and 25 parts by weight of a second peroxide, wherein the at least two first peroxides comprise 25 parts by weight of benzoyl peroxide, 30 parts by weight of 2,4-dichlorobenzene acyl peroxide, and 20 parts by weight of lauroyl peroxide, and the second peroxide is di-t-butyl peroxide.
Claim 3
Dependent Claim 69 words
An initiator composition, comprising 95 parts by weight of at least two first peroxides and 5 parts by weight of a second peroxide, wherein the at least two first peroxides comprise 35 parts by weight of benzoyl peroxide, 40 parts by weight of 2,4-dichlorobenzene acyl peroxide, 10 parts by weight of lauroyl peroxide, and 10 parts by weight of diacetyl peroxide, and the second peroxide is t-butyl cumyl peroxide.
Claim 4
Dependent Claim 69 words
An initiator composition, comprising 95 parts by weight of at least two first peroxides and 5 parts by weight of a second peroxide, wherein the at least two first peroxides comprise 35 parts by weight of benzoyl peroxide, 40 parts by weight of 2,4-dichlorobenzene acyl peroxide, 10 parts by weight of lauroyl peroxide, and 10 parts by weight of diacetyl peroxide, and the second peroxide is t-butyl cumyl peroxide.
Claim 5
Dependent Claim 54 words
An initiator composition, comprising 90 parts by weight of at least two first peroxides and 10 parts by weight of a second peroxide, wherein the at least two first peroxides comprise 40 parts by weight of benzoyl peroxide and 50 parts by weight of 2,4-dichlorobenzene acyl peroxide, and the second peroxide is dicumyl peroxide.
Claim 6
Dependent Claim 54 words
An initiator composition, comprising 90 parts by weight of at least two first peroxides and 10 parts by weight of a second peroxide, wherein the at least two first peroxides comprise 40 parts by weight of benzoyl peroxide and 50 parts by weight of 2,4-dichlorobenzene acyl peroxide, and the second peroxide is dicumyl peroxide.
Claim 7
Dependent Claim 120 words
An initiator composition for expediting curing of an unsaturated polyester resin at room temperature, the initiator composition comprising: at least two first peroxides selected from the group consisting of benzoyl peroxide, 2,4-dichlorobenzene acyl peroxide, lauroyl peroxide, and diacetyl peroxide; a second peroxide selected from the group consisting of dicumyl peroxide, di-t-butyl peroxide, and t-butyl cumyl peroxide; and a carboxylic ester peroxide selected from the group consisting of tert-butyl peroxybenzoate (TBPB), tert-butyl peroxy diethyl acetate, t-butyl peroctoate (TBPO); wherein: the initiator composition comprises between 70 and 85 parts by weight of the at least two first peroxides, between 5 and 15 parts by weight of the second peroxide, and between 5 and 15 parts by weight of the carboxylic ester peroxide.
Claim 8
Dependent Claim 120 words
An initiator composition for expediting curing of an unsaturated polyester resin at room temperature, the initiator composition comprising: at least two first peroxides selected from the group consisting of benzoyl peroxide, 2,4-dichlorobenzene acyl peroxide, lauroyl peroxide, and diacetyl peroxide; a second peroxide selected from the group consisting of dicumyl peroxide, di-t-butyl peroxide, and t-butyl cumyl peroxide; and a carboxylic ester peroxide selected from the group consisting of tert-butyl peroxybenzoate (TBPB), tert-butyl peroxy diethyl acetate, t-butyl peroctoate (TBPO); wherein: the initiator composition comprises between 70 and 85 parts by weight of the at least two first peroxides, between 5 and 15 parts by weight of the second peroxide, and between 5 and 15 parts by weight of the carboxylic ester peroxide.
Claim 9
Dependent Claim 27 words
The initiator composition of claim 4 , wherein the initiator composition expedites the curing of an unsaturated polyester resin at a temperature not higher than 15° C.
Claim 10
Dependent Claim 83 words
An initiator composition, comprising at least two first peroxides, a second peroxide, and a carboxylic ester peroxide; wherein the at least two first peroxides are 75 parts by weight; the second peroxide is 12 parts by weight; the carboxylic ester peroxide is 13 parts by weight; the at least two first peroxides comprise 35 parts by weight of benzoyl peroxide and 40 parts by weight of 2,4-dichlorobenzene acyl peroxide; the second peroxide is dicumyl peroxide; and the carboxylic ester peroxide is tert-butyl peroxybenzoate.
Claim 11
Dependent Claim 83 words
An initiator composition, comprising at least two first peroxides, a second peroxide, and a carboxylic ester peroxide; wherein the at least two first peroxides are 75 parts by weight; the second peroxide is 12 parts by weight; the carboxylic ester peroxide is 13 parts by weight; the at least two first peroxides comprise 35 parts by weight of benzoyl peroxide and 40 parts by weight of 2,4-dichlorobenzene acyl peroxide; the second peroxide is dicumyl peroxide; and the carboxylic ester peroxide is tert-butyl peroxybenzoate.

References Cited (Backward Citations)

US4873274A Cited
US6194525B1 Cited
CN1350917A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2019-09-27 2020-03-28 2020-09-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2023-09-27 2024-03-28 2024-09-27 $3760.00 Window Closed / Lapsed
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