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US4161572A Expired / Lapsed US ⏱️ 0.0 years remaining

Curable diallyl phthalate compounds and process for producing same

Assignee: Kanegafuchi Chemical Industry Co Ltd
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Filing: 1978-08-24
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Granted: 1979-07-17
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Expires: 1998-08-24
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Abstract

Abstract Diallyl Phthalate compounds having a molecular weight of 250 to 20,000 and having at least one silyl group represented by the formula: <IMAGE> wherein R1, R2 and R3 are each a hydrogen or a monovalent hydrocarbon radicals having 1 to 10 carbon atoms, such as alkyl, aryl or aralkyl radicals; X is a group selected from halogen, alkoxy, acryloxy, aminoxy, phenoxy, thioalkoxy and amino groups, and "a" is an integer 0, 1 or 2, in the molecule; and process for producing same wherein a diallyl phthalate monomer or prepolymer having molecular weight of 20,000 or less is reacted with a hydrosilane compound having the formula: <IMAGE> WHEREIN THE DESIGNATIONS ARE THE SAME AS ABOVE, AND AT A TEMPERATURE WITHIN THE RANGE OF 50 DEG TO 150 DEG C.

Inventors

  • 👤 Kazuya Yonezawa
  • 👤 Hisao Furukawa
  • 👤 Masaaki Azuma

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 14:22
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/42

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 86 words
A process for producing curable diallyl phthalate compound wherein diallyl phthalate monomer or diallyl phthalate prepolymer having a molecular weight of 20,000 or less, is reacted with a hydrosilane compound represented by the formula: ##STR6## wherein R 1 is a monovalent hydrocarbon group having 1 to 10 carbon atoms; X is a group selected from the group consisting of halogen, alkoxy, acyloxy, aminoxy, phenoxy, thioalkoxy and amino groups; and "a" is an integer 0, 1 or 2; at a temperature of between 50° and 150° C.
Claim 2
Dependent Claim 86 words
A process for producing curable diallyl phthalate compound wherein diallyl phthalate monomer or diallyl phthalate prepolymer having a molecular weight of 20,000 or less, is reacted with a hydrosilane compound represented by the formula: ##STR6## wherein R 1 is a monovalent hydrocarbon group having 1 to 10 carbon atoms; X is a group selected from the group consisting of halogen, alkoxy, acyloxy, aminoxy, phenoxy, thioalkoxy and amino groups; and "a" is an integer 0, 1 or 2; at a temperature of between 50° and 150° C.

References Cited (Backward Citations)

US2970150A Cited
US3450736A Cited
US3296196A Cited
SU461931A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-07-16 1983-01-15 1983-07-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-07-16 1987-01-15 1987-07-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-07-16 1991-01-15 1991-07-17 $7700.00 Window Closed / Lapsed

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