US3661614A
Expired / Lapsed
US
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Radiation-curable ink compositions
Assignee: Sun Chemical Corp
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Filing: 1969-12-11
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Granted: 1972-05-09
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Expires: 1989-12-11
Abstract
Abstract A radiation-curable solvent-free printing ink consists of (1) about 20 to 98 weight per cent of a pentaerythritol acrylate, methacrylate, or itaconate, (2) about 2 to 80 weight per cent of a halogenated aromatic, alicyclic, or aliphatic hydrocarbon photoinitiator wherein the halogen atoms are attached directly to the ring structure in the aromatic and alicyclic compounds and to the carbon chain in the aliphatic compounds, and (3) a colorant.
Inventors
- 👤 Robert W Bassemir
- 👤 Daniel J Carlick
- 👤 Gerald I Nass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:37
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/20; C09; C09D; C09D11/00; C09D11/02; C09D11/10; C09D11/101
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
17 words
The ink composition of claim 1 wherein the ester is an acrylate, methacrylate, or itaconate of pentaerythritol.
Claim 2
Dependent Claim
17 words
The ink composition of claim 1 wherein the ester is an acrylate, methacrylate, or itaconate of dipentaerythritol.
Claim 3
Dependent Claim
17 words
The ink composition of claim 1 wherein the ester is an acrylate, methacrylate, or itaconate of tripentaerythritol.
Claim 4
Dependent Claim
18 words
The ink composition of claim 1 wherein the ester is a mixture of acrylates of pentaerythritol and dipentaerythritol.
Claim 5
Dependent Claim
18 words
The ink composition of claim 1 wherein the ester is a mixture of acrylates of pentaerythriTol and tripentaerythritol.
Claim 6
Dependent Claim
27 words
The ink composition of claim 1 wherein the ester is a mixture of dimers and trimers of an acrylate, methacrylate, or itaconate of pentaerythritol, dipentaerythritol, or tripentaerythritol.
Claim 7
Dependent Claim
16 words
The ink composition of claim 1 wherein the photoinitiator is at least one halogenated aromatic hydrocarbon.
Claim 8
Dependent Claim
14 words
The ink composition of claim 1 wherein the photoinitiator is a halogenated aliphatic hydrocarbon.
Claim 9
Dependent Claim
25 words
The ink composition of claim 1 wherein the amount of colorant is about 0.1 to 80 per cent of the weight of the total composition.
Claim 10
Dependent Claim
31 words
A method of printing which comprises the steps of (1) applying the ink composition of claim 1 to a substrate and (2) exposing the printed substrate to a source of radiation.
Claim 11
Dependent Claim
11 words
The method of claim 11 wherein the radiation is ultraviolet light.
Claim 12
Dependent Claim
12 words
The method of claim 11 wherein the radiation is electron beam radiation.
Claim 13
Dependent Claim
18 words
The method of claim 11 wherein the radiation is a combination of ultraviolet light and electron beam radiation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |