Unlock instant, AI-driven research and patent intelligence for your innovation.

Polymer composition and method for its preparation

A technology of polymers and hyperbranched polymers, applied in polyurea/polyurethane coatings, biocide-containing paints, coatings, etc., can solve problems such as short life of oil repellency

Active Publication Date: 2021-03-02
NIPSEA TECH PTE
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the oil repellency imparted by fluorosurfactants has been found to be somewhat short-lived, ostensibly because fluorocarbon surfactants are water soluble and tend to separate from the coating composition when exposed to solvents such as water or rain (weak acids)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polymer composition and method for its preparation
  • Polymer composition and method for its preparation
  • Polymer composition and method for its preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0184] Preparation of polymer compositions containing fluorocarbon, MPEG and NCO functional groups

[0185] (1a) Preparation of IPDI-perfluoroalkylethanol precursor (IPDI-PFE)

[0186] Under a nitrogen atmosphere, perfluoroalkylethanol (72.18g) was added to IPDI (24.00g) in several portions, Butyl acetate ("BA") (24.00g) and DBTDL (0.096g) in a mixture. The mixture was stirred at room temperature ("RT") for 1 hour until the NCO% reached a theoretical value of 3.0%.

[0187] (1b) Preparation of IPDI-MPEG750 precursor (IPDI-MPEG)

[0188] An 80 wt% solution of MPEG750 in butyl acetate (323.9 g) was slowly added to a mixture of IPDI (64.00 g), butyl acetate (64.78 g) and DBTDL (0.323 g) at 25°C under nitrogen atmosphere. The mixture was stirred at 25°C for 2 hours until the NCO% reached a theoretical value of 2.14%.

[0189] (1c) Preparation of polymers with hydrophilic + oleophobic functional groups (H4001-MPEG40%-PFE10%)

[0190] Under nitrogen atmosphere, IPDI-PFE addu...

Embodiment 2

[0194] Preparation of Polymers Containing Fluorocarbon, MPEG, and Capped-NCO Functional Groups

[0195] (2a) Preparation of IPDI-caprolactam / MPEG750 / perfluoroalkylethanol precursor:

[0196] To a mixture of IPDI (132.00 g), BA (144.40 g) and DBTDL (0.423 g) was added solid perfluoroalkylethanol or "PFE" (41.35 g) in one portion at room temperature under nitrogen protection. The mixture was stirred at room temperature for 30 minutes, then a solution of MPEG 750 in BA (267.90 g, 80 wt %) was added over 30 minutes. After stirring at room temperature for a further 30 minutes, caprolactam (35.30 g) was added in one portion and the resulting mixture was heated to 65° C. for about 3 hours until the NCO% reached a theoretical value of 3.5%. The resulting solution was cooled to room temperature.

[0197] (2b) Preparation of a polymer composition containing caprolactam / MPEG750 / perfluoroalkylethanol:

[0198] To a mixture of polyacrylate NT1802 (95.00 g) and DBTDL (0.095 g) was intr...

Embodiment 3

[0200] Preparation of Polymer Compositions Containing Fluorocarbon, MPEG, and Capped-NCO Functional Groups

[0201] To a mixture of H4001 (117.00 g) and DBTDL (0.095 g) was added the precursor mixture of Example 2(a) (288.10 g) over 30 minutes at 80°C under nitrogen protection. The mixture was stirred at the same temperature for about 8 hours until NCO% < 0.2%. GPC test yielded Mn=3959 and Mw=17363.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
particle size distributionaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a polymer having the formula (I): wherein the line "---" represents a covalent bond, or a bonding group selected from the following: -NRC(0)0-, -C(0)OC (0)-NR-, -C(0)NR-, -NHC(0)NH-, wherein R is H, optionally substituted C1-C6 alkyl, Ci-C6 heteroalkyl, carbocyclic, aryl or heteroaryl; P is a polymer containing y peripheral functional groups; L is a bond selected from optionally substituted, aliphatic, branched or cyclic alkyl, aryl, phenyl or alkylene diphenyl A is a hydrophobic functional group; B is a hydrophilic functional group and a carboxylate; and X is a crosslinkable functional group; each of m, n, and q is greater than 0, and wherein m+n+q≤y, and The present invention relates to the use of such polymers for the preparation of coating compositions.

Description

technical field [0001] The present invention relates to a polymer composition for use in a coating composition. The present application also discloses a method of preparing such a polymer composition. Background technique [0002] Surface contamination by foreign particles or dust is a common problem encountered with surface protection coatings. This problem is particularly relevant to coated surfaces that are frequently exposed to dust, dust, dirt and rain, such as those of the exterior surfaces of motor vehicles. It is generally desirable that these surface protective coatings repel water, dust and other foreign particles and / or provide for easy removal of dust, oil and dirt. In this regard, the state of the art offers several known solutions for achieving coated surfaces that offer ease of cleaning. [0003] In one known solution, the surface is covered with polymer compositions or inorganic nanoparticles that have been rendered hydrophilic or superhydrophilic. Hydrop...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C09D5/00C09D5/16C09D201/00
CPCC09D5/1662C08G83/006C08G81/00C08G63/91C09D201/005C08G18/672C08G18/718C08G18/8064C08G18/8074C08G18/8175C08G18/283C08G18/2845C08G18/2855C08G18/2885C09D175/06C08G18/42C08G18/755C08G83/00C09D201/00C08G18/12C08G18/6692C08G18/6755C08G18/778C08G18/8096C09D5/00C09D175/04C09D175/12
Inventor 汪少锋胡剑萧瑞豪
Owner NIPSEA TECH PTE