Flexible hydrophilic aspartic resin and emulsion
AssigneeShenzhen Feiyang Protech Corp., Ltd
InventorsPoli Zhao, Jiang Wu, Xiaoyong Qiu, Linna Che, Shankai Luo, Longhui Zhu
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Abstract
Disclosed are a flexible hydrophilic aspartic resin and an emulsion, which relate to the technical field of aspartate resins. The present application introduces hydrophilic segments and flexible segments into the structure of aspartic resin, thereby obtaining aspartic resin possessing both flexibility and hydrophilicity. The flexible hydrophilic aspartic resin can be self-emulsified and dispersed in water to form an emulsion.
Claims8
A flexible hydrophilic aspartic resin, comprising a —N(X)CONH— group, a first polyether segment, a second polyether segment, and at least one of structures as shown in formula (1) or structures as shown in formula (2):
- —NHCOO— group (1)
- —OOC(N—)CONH— group (2)
- wherein X is selected from H or a residue remaining after removing one hydrogen atom from an amino group of an amino resin containing the amino group, the amino group being a secondary amino group;
- a molar content of a polyethylene glycol segment in the first polyether segment is not less than 80%, wherein the first polyether segment is directly chemically bonded to at least one of the —NHCOO— group or the —OOC(N—)CONH— group;
- a molar content of a polyethylene glycol segment in the second polyether segment is not higher than 20%, wherein the second polyether segment is directly chemically bonded to at least one of the —NHCOO— group or the —OOC(N—)CONH— group;
- a structure of the first polyether segment is as shown in formula (3):
- —(CH2CH2O)aDbE (3),
- wherein D is at least one selected from a group consisting of:
- —CH2CH2CH2O—, —CH2CH3CHO—, —(CH2)4O—, —CH2CH2CH3CHO—, and —(CH2)6O—, 4≤a≤50, b≥0, a/(a+b)≥0.8, and E is selected from C1-C4 alkyl group;
- a structure of the second polyether segment is as shown in formula (4):
- —(CH2CH2O)cTd- (4),
- wherein T is at least one selected from a group consisting of:
- —CH2CH2CH2O—, —CH2CH3CHO—, —(CH2)4O—, —CH2CH2CH3CHO—, —(CH2)6O—, and a divalent residue remaining after removing two active hydrogens from a polyester diol, c≥0, 4≤d≤50, and c/(c+d)≤0.2;
- or, the flexible hydrophilic aspartic resin comprises the —N(X)CONH— group, a cation-containing structure, and at least one of the structures as shown in the formula (1) or the structures as shown in the formula (2);
- wherein a weight ratio of the cation-containing structure in the flexible hydrophilic aspartic resin is 2-15%.
Dependencies are inferred from the claim text.