A polyamide and a method for its preparation and use
Polyamides were prepared by combining specific residues and gradient heating reaction, which solved the problems of insufficient UV aging resistance and toughness of transparent materials in outdoor use, and achieved high light transmittance, low haze and excellent weather resistance, making them suitable for high-end eyeglasses.
CN122255457APending Publication Date: 2026-06-23KINGFA SCI & TECH CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- KINGFA SCI & TECH CO LTD
- Filing Date
- 2026-04-20
- Publication Date
- 2026-06-23
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Abstract
The application provides a kind of polyamide and its preparation method and application, the polyamide includes diamin residue and diacid residue;The diamin residue includes 2,2'-dimethyl-4,4'-methylene bis (cyclohexylamine) residue;The diacid residue includes 1,4-cyclohexane dicarboxylic acid residue and 1,12-dodecyl diacid residue;With the total molar amount of diacid residue as 100mol%, the molar percentage content of 1,4-cyclohexane dicarboxylic acid residue is 14~29mol%.The polyamide has excellent UV aging resistance and toughness, while it can also maintain high light transmittance and low haze, can meet the strict demand of high-end glasses market for material long-term beauty and durability.
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