公开(公告)号：US10975237B1

公开(公告)日：2021-04-13

申请号：US15930825

申请日：2020-05-13

Applicant: Chang Chun Plastics Co., Ltd.

Inventor： Pin-Cheng Lin ,  Kuo-Pin Wu ,  I-Chiang Lai

IPC: C08L61/28

Abstract: Provided is a melamine-formaldehyde resin composition. In a first aspect, the melamine-formaldehyde resin composition has at least one melamine oligomer with a mass-to-charge ratio (m/z) ranging from 393 to 692. Based on the total area of all chromatographic peaks in the melamine-formaldehyde resin composition, the sum of the areas of the chromatographic peaks with m/z of 393 to 692 ranges from 2% to 20%. In a second aspect, the melamine-formaldehyde resin composition comprises 2,4,6-tri[bis(methoxymethyl)amino]-1,3,5-triazine, and the area thereof ranges from 15% to 33% based on the total area of all chromatographic peaks in the melamine-formaldehyde resin composition. The melamine-formaldehyde resin composition of the present invention has superior freeze resistance and extended low-temperature storage life.

公开(公告)号：US10745556B1

公开(公告)日：2020-08-18

申请号：US16824000

申请日：2020-03-19

Applicant: Chang Chun Plastics Co., Ltd.

Inventor： Ren-Wei Tsai ,  You-Ting Chen ,  Kuo-Pin Wu ,  Yung-Sheng Lin ,  I-Chiang Lai ,  Yi-Sern Wong ,  Kuen-Yuan Hwang

IPC: C08L75/02 ,  C09D7/40 ,  C09D175/02

Abstract: Provided are an amino resin composition, a varnish, a coating layer, and a product. The amino resin composition comprises a repeating unit represented by the following Formula (I): A 13C-NMR spectrum of the amino resin composition has a first characteristic peak at 159 ppm to 161 ppm and a second characteristic peak at 70 ppm to 80 ppm. Based on the integral value of the first characteristic peak as 1, the integral value of the second characteristic peak is in the range from 0.01 to 0.25. Adopting the amino resin composition can accelerate the drying of the varnish and ensure the coating layer and the product have high hardness, high gloss and excellent color stability.