USOO516O790A LUBRCIOUS HYDROGEL COATINGS
United States Patent
USOO516O790A
Date of Patent: Nov. 3, 1992
LUBRCIOUS HYDROGEL COATINGS
Inventor: Richard K. Elton, Glens Falls, N.Y.
Assignee: C. R. Bard, Inc., Glens Falls, N.Y.
A flexible, lubricious organic coating is formed by applying a mixture of an isocyanate, a polyol, polyvinylpyrrolidone (PVP), and carrier liquid to a surface to be coated.
【EX1】
1.09g；toluene diisocyanate–based prepolymer / Vorite 63
https://www.palmerholland.com/All-Products/VORITE-63
1.16g；castor oil /DB oil
Specialty Chemical and Fine Ingredient Distributor – Palmer Holland
150g；5% (w/W) solution of polyvinylpyrrolidone in methylene chloride / Kollidon 90
Kollidon® Povidones, Copovidones, and Crospovidones for… | BASF Pharma
※vacuum dried for 18 hrs at 200° F（＝93℃）., under an approximate 27″ Hg vacuum（686mmHg）.
173g；methylene chloride.
solution contained 30 parts by weight of polyurethane precursors (isocyanate and polyol, collectively) to 100 parts PVP.
↓polyurethane catheter tubing 、by dipping during 20 seconds.
↓evaporated 5 minutes.
↓225°F（＝107℃）. for 120 minutes
【EX2】
1.82ｇ：Vorite 63
1.94ｇ；D.B. oil
３００ｇ；5% (w/w) solution of Kollidon 90 in methylene chloride.
３２０ｇ；methylene chloride
25 parts by weight of polyurethane precursors to 100 parts PVP.
polyurethane catheter tubing was coated
【EX3】
1.50g； Vorite 63.
1.62g； DB oil.
260g； 3% (w/w) solution of Kollidon 90 in dibromomethane.
342g； dibromomethane.
40 parts by weight of urethane precursors to 100 parts PVP K90.
polyether-block amide polymer, available as Pebax 4033
【EX4】
60g； Vorite 63.
1.70g； DB oil.
200g； 3% (w/w) solution of polyvinylpyrrolidone in methylene chloride., Plasdone K-120 GAF Corp.,
129g； methylene chloride.
contained 55 parts by weight of polyurethane precursors to 100 parts of PVP K120.
【COM5】
1.86g； Vorite 63.
1.14g； polyethylene glycol /CARBOWAX PEG 400
CARBOWAX™ Polyethylene Glycol 400 | Dow Inc.
150g；5% (w/w) solution of Kollidon 90 in methylene chloride.
197g；methylene chloride.
contained 40 parts by weight of polyurethane precursors to 100 parts PVP K90.
Importantly, this is an example of the formation of an essentially linear, instead of a crosslinked, polyurethane, since both the isocyanate prepolymer and the polyol have a functionality of 2.
does not produce a gel of sufficient integrity to withstand a practical degree of abrasion.
【COM6】
40g； 5% (w/w) solution of a linear polyetherurethane, in methylene chloride. /Estane 5703,
100g； 5% (w/w) solution of Kollidon 90 in methylene chloride.
93g； methylene chloride.
contained 40 parts of linear, preformed polyurethane to 100 parts of PVP K90.
【COM7】
50g; 5% (w/w) solution of Estane 5703 in methylene chloride.
50g; 5% (w/w) solution of Kollidon 90 in methylene chloride.
contained 100 parts of linear, preformed polyurethane to 100 parts of PVP K90.
【COM8】
3.0g; Vorite 63.
150g; 5% (w/w) solution of Kollidon 90 in methylene chloride.
197g; methylene chloride.
contained 40 parts of Vorite 63 to 100 parts of PVP K90.
no polyol is present, the formation of a crosslinked polyurethane is not possible.
【EX9】
1.96g； Vorite 63
1.04g； modified castor oil based polyol 4 available / Polycin 12
Specialty Chemical and Fine Ingredient Distributor – Palmer Holland
150g; 5% (w/w) solution of Kollidon 90 in methylene chloride.
197g； methylene chloride.
contained 40 parts of polyurethane precursors to 100 parts PVP K90.
【EX10】
1.45g； Vorite 63.
1.55g； DB oil.
150g； 5% (w/w) solution of Kollidon 90 in methylene chloride.
229g； methylene chloride.
contained 40 parts of polyurethane precursors to 100 parts of PVP K90.
【EX11】
1.33g； 60% solution adduct of toluene diisocyanate and trimethylolpropane in methoxy acetoxy propane
/ Mondur CB-60 PMA
Mondur® | Polyisocyanates by Covestro | Covestro
1586421437.pdf
1.60g； Vorite 63;
1.37g； Polycin 12;
200g； 5% (w/w) solution of Kollidon 90 in methylene chloride.
247g； methylene chloride.
contained 35 parts of polyurethane precursors to 100 parts PVP K90.
【EX12】
1.26g； Vorite 63;
1.14g； DB oil;
0.84g；1% solution of a hindered phenol antioxidant in methylene chloride / Irganox 1076;
IRGANOX® 1076 | BASF
200g； 3% (w/w) solution of Kollidon 90 in dibromomethane.
264g； dibromethane.
contained 40 parts of polyurethane precursors to 100 parts PVP.
↓dip coated in this solution for 8 seconds.
↓evaporated 15 minutes.
↓225.degree. F. for 120 minutes
ASTM D1894-87 and demonstrated a value of 0.02.
Instron ASTM D1894-14 Coefficient of Friction of Plastic Film | Instron
【EX13】
2.56g； Vorite 63;
7.44g； polyester polyol (available as Multron R-18 from Mobay Corp.);
200g； 5% (w/w) solution of Plasdone K90 in methylene chloride.
456g； methylene chloride.
contained 100 parts of polyurethane precursors to 100 parts of PVP K90.
↓dip coated in this solution for 45 seconds.
↓evaporated 10 minutes.
↓at 225.degree. F. for 120 minutes
【EX14】
2.98g； Mondur CB-60 PMA;
1.03g； CARBOWAX PEG 400;
1.40g； 1% solution of Irganox 1076 in methylene chloride;
200g； 5% (w/w) solution of Kollidon 90 which was first vacuum dried as in Example 1, in methylene chloride.
30g； methylene chloride.
contained 40 parts of polyurethane precursors to 100 parts of PVP K90.
有機基材と、それに付着した親水性の潤滑性有機コーティングとを含む物品であって、前記コーティングは、コーティングされる基材の表面上で、キャリア液中にイソシアネート、ポリオールおよびポリビニルピロリドンを含む混合物を反応させて、 架橋ポリウレタン−ポリビニルピロリドンコーティングであって、前記イソシアネートが１分子当たり少なくとも２つのＮＣＯ基を含み、ポリオールが１分子当たり少なくとも２つのヒドロキシ基を有し、平均ＮＣＯ官能価と平均ヒドロキシ官能価の合計が４を超える、架橋ポリウレタン−ポリビニルピロリドンコーティング。
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