Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive...
Patent
1998-03-30
2000-10-24
Hamilton, Cynthia
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
4302801, 264401, G03F 7027, G03F 7038, G03C 908
Patent
active
061364975
ABSTRACT:
The present invention relates to stereolithographic compositions containing an actinic radiation-curable and cationically polymerizable organic substance, a cationic initiator, a radical photoinitiator, and at least one cationic reactive modifier containing at least two reactive groups per molecule or at least one polyether polyol or mixtures thereof. The cationic reactive modifier has at least one chain extension segment with a molecular weight of at least about 100 and not more than about 2,000. The polyether polyol has a molecular weight greater than or equal to about 4,000. The use of the cationically reactive modifiers and polyether polyol modifiers substantially increases the flexibility and toughness of the cured articles without compromising photospeed, accuracy and wetting-recoatability of the compositions. The present invention further relates to a method of producing a cured product, particularly three-dimensional shaped articles by treating the composition described above with actinic radiation.
REFERENCES:
patent: 5434196 (1995-07-01), Ohkawa et al.
patent: 5476748 (1995-12-01), Steinmann et al.
patent: 5494618 (1996-02-01), Sitzmann et al.
patent: 5506087 (1996-04-01), Lapin et al.
patent: 5510226 (1996-04-01), Lapin et al.
patent: 5605941 (1997-02-01), Steinmann et al.
patent: 5705116 (1998-01-01), Sitzmann et al.
Derwent Abst. 93-305188 [39].
Derwent Abst. 93-176448 [22].
Derwent Abst. 94-017991 [03].
Derwent Abst. 95-136469.
Derwent Abst. 97-431498.
Derwent Abst. 97-466285.
Patent Abstracts of Japan, Publication No. 09194540A.
Results of Search--abstracts (Search criteria not given--Data base and files not given).
Steinmann et al, 128: 174150, CA Files, STN Database Service, Chemical Abstracts, American Chemical Society, 1999, Abstract of EP 0822,445-A1, dated Jul. 21, 1997.
Steinmann et al, 1998--103049, West 1.1a Database, File Derwent, English Abstract of EP 0822 445-A1, dated Jul. 21, 1997.
Melisaris Anastasios P.
Pang Thomas H
Renyi Wang
Crichton David R.
Hamilton Cynthia
Kovaleski Michele A.
Vantico Inc.
LandOfFree
Liquid, radiation-curable composition, especially for producing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid, radiation-curable composition, especially for producing , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid, radiation-curable composition, especially for producing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1961842