UST917011I4 - Defensive publication - Google Patents
Defensive publication Download PDFInfo
- Publication number
- UST917011I4 UST917011I4 US917011DH UST917011I4 US T917011 I4 UST917011 I4 US T917011I4 US 917011D H US917011D H US 917011DH US T917011 I4 UST917011 I4 US T917011I4
- Authority
- US
- United States
- Prior art keywords
- units
- linked
- cooh
- cross
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 6
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract description 3
- 239000002253 acid Substances 0.000 abstract description 2
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 239000007864 aqueous solution Substances 0.000 abstract description 2
- 229920006037 cross link polymer Polymers 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
- C08G73/02—Polyamines
- C08G73/0206—Polyalkylene(poly)amines
Definitions
- L J Ethyleneimine is formed. into a low molecular weight branched pre-polymer in an acidic aqueous solution. This is then cyanoethylated and cross-linked in a strongly acid solution of formaldehyde and hydrocyanic acid. The resulting cross-linked polymer is hydrolyzed to provide active sequestering groups N-CH CO0H on the chain.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
THIS APPLICATION DESCRIBES A SUBSTANTIALLY WATER-INSOLUBLE, CROSS-LINKED SEQUESTERING RESIN HAVING A PLURALITY OF UNITS IN ARBITRARY SEQUENCE SELECTED FROM THE GROUP CONSISTING OF
-(CH2)2-N(-)-CH2-N(-)-(CH2)2-, -(CH2)2-N(-CH2-COOH)-,
AND -(CH2)2-NH-
WHEREIN AT LEAST 15% OF THE UNITS ARE
-(CH2)2-N(-CH2-COOH)-
AND ABOUT 15% OF THE UNITS ARE
-(CH2)2-N(-)-CH2-N(-)-(CH2)2-
ETHYLENEIMINE IS FORMED INTO A LOW MOLECULAR WEIGHT BRANCHED PRE-POLYMER IN AN ACIDIC AQUEOUS SOLUTION. THIS IS THEN CYANOETHYLATED AND CROSS-LINKED IN A STRONGLY ACID SOLUTION OF FORMALDEHYDE AND HYDROCYANIC ACID. THE RESULTING CROSS-LINKED POLYMER IS HYDROLYZED TO PROVIDE ACTIVE SEQUESTERING GROUPS>N-CH2-COOH ON THE CHAIN.
-(CH2)2-N(-)-CH2-N(-)-(CH2)2-, -(CH2)2-N(-CH2-COOH)-,
AND -(CH2)2-NH-
WHEREIN AT LEAST 15% OF THE UNITS ARE
-(CH2)2-N(-CH2-COOH)-
AND ABOUT 15% OF THE UNITS ARE
-(CH2)2-N(-)-CH2-N(-)-(CH2)2-
ETHYLENEIMINE IS FORMED INTO A LOW MOLECULAR WEIGHT BRANCHED PRE-POLYMER IN AN ACIDIC AQUEOUS SOLUTION. THIS IS THEN CYANOETHYLATED AND CROSS-LINKED IN A STRONGLY ACID SOLUTION OF FORMALDEHYDE AND HYDROCYANIC ACID. THE RESULTING CROSS-LINKED POLYMER IS HYDROLYZED TO PROVIDE ACTIVE SEQUESTERING GROUPS>N-CH2-COOH ON THE CHAIN.
Description
DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. 'lfie Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED DECEMBER 4, 1973 L 00011 ,and L JHa J door: and about 15% of the units are L J Ethyleneimine is formed. into a low molecular weight branched pre-polymer in an acidic aqueous solution. This is then cyanoethylated and cross-linked in a strongly acid solution of formaldehyde and hydrocyanic acid. The resulting cross-linked polymer is hydrolyzed to provide active sequestering groups N-CH CO0H on the chain.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US36338073A | 1973-05-24 | 1973-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| UST917011I4 true UST917011I4 (en) | 1973-12-04 |
Family
ID=23429985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US917011D Pending UST917011I4 (en) | 1973-05-24 | 1973-05-24 | Defensive publication |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | UST917011I4 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT395534B (en) * | 1985-10-31 | 1993-01-25 | Aikoh Co | Deodorizing composition |
-
1973
- 1973-05-24 US US917011D patent/UST917011I4/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT395534B (en) * | 1985-10-31 | 1993-01-25 | Aikoh Co | Deodorizing composition |
| AT398901B (en) * | 1985-10-31 | 1995-02-27 | Aikoh & Co Ltd | Deodorizing composition |
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