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US4180474A Expired / Lapsed US ⏱️ 0.0 years remaining

Radiation-hardenable diluents for radiation-hardenable compositions

Assignee: Bayer AG
•
Filing: 1977-11-07
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Granted: 1979-12-25
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Expires: 1997-11-07
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Abstract

Abstract Radiation-crosslinkable diluents for radiation-hardenable compositions (binders) consisting of a mixture of triacrylates of a reaction product of trimethylol propane and ethylene oxide with an average degree of ethoxylation of from 2.5 to 4, the ethoxylated trimethylol propane being substantially free from trimethylol propane and having the following distribution: 4 to 5% by weight of monoethoxylation product 14 to 16% by weight of diethoxylation product 20 to 30% by weight of triethoxylation product 20 to 30% by weight of tetraethoxylation product 16 to 18% by weight of pentaethoxylation product. 6 to 8% by weight of hexaethoxylation product. The diluents effectively reduce the viscosity of radiation-hardenable compositions and do not have any adverse effect upon their reactivity or upon the properties of the resulting hardened products.

Inventors

  • 👤 Karl-Ernst Schuster
  • 👤 Hans J. Rosenkranz
  • 👤 Karl Furh
  • 👤 Hans Rudolph

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 14:21
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/66; C08G63/668; C08G63/676; C08F; C08F299/00; C08F299/02; C08F299/04; C08F299/0478; C08F299/06; C08G18/00; C08G18/06; C08G18/70; C08G18/81; C08G18/8141; C08G18/815; C08G18/8158; C08G18/8175; C08K; C08K5/00; C08K5/04; C08K5/10; C09; C09D; C09D4/00

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 96 words
A radiation-crosslinkable diluent for radiation-hardenable compositions comprising a mixture of triacrylates of a reaction product of trimethylol propane and ethylene oxide with an average degree of ethoxylation of from 2.5 to 4, the ethoxylated trimethylol propane being substantially free from trimethylol propane and having the following distribution: 4 to 5% by weight of monoethoxylation product; 14 to 16% by weight of diethylation product; 20 to 30% by weight of triethoxylation product; 20 to 30% by weight of tetraethoxylation product; 16 to 18% by weight of pentaethoxylation product; and 6 to 8% by weight of hexaethoxylation product.
Claim 2
Dependent Claim 96 words
A radiation-crosslinkable diluent for radiation-hardenable compositions comprising a mixture of triacrylates of a reaction product of trimethylol propane and ethylene oxide with an average degree of ethoxylation of from 2.5 to 4, the ethoxylated trimethylol propane being substantially free from trimethylol propane and having the following distribution: 4 to 5% by weight of monoethoxylation product; 14 to 16% by weight of diethylation product; 20 to 30% by weight of triethoxylation product; 20 to 30% by weight of tetraethoxylation product; 16 to 18% by weight of pentaethoxylation product; and 6 to 8% by weight of hexaethoxylation product.
Claim 3
Dependent Claim 19 words
A radiation-crosslinkable diluent as claimed in claim 1 wherein the average degree of ethoxylation is from 3 to 4.
Claim 4
Dependent Claim 15 words
A radiation-hardenable composition comprising a binder and a radiation-crosslinkable diluent as claimed in claim 1.
Claim 5
Dependent Claim 15 words
A radiation-hardenable composition as claimed in claim 3 wherein the binder contains radiation-polymerisable double bonds.
Claim 6
Dependent Claim 23 words
A radiation-hardenable composition as claimed in claim 3 which comprises from 5 to 80% by weight of the diluent based on the composition.

References Cited (Backward Citations)

US3457178A Cited
US3725355A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1982-12-24 1983-06-25 1983-12-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1986-12-24 1987-06-25 1987-12-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1990-12-24 1991-06-25 1991-12-25 $7700.00 Window Closed / Lapsed

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