Process of producing pigmented, a hardenable resin containing paper sheets, and products专利检索-遮盖力染料和颜料专利检索查询-专利查询网

Process of producing pigmented, a hardenable resin containing paper sheets, and products

阅读：602发布：2023-10-27

专利汇可以提供Process of producing pigmented, a hardenable resin containing paper sheets, and products专利检索，专利查询，专利分析的服务。并且A paper sheet is impregnated with a hardenable resin and a pigment and is coated with a mixture of a hardenable resin, a pigment, and a plasticizer. It may additionally be provided with a substratum layer of a hardenable resin on the surface opposite the coated surface. Such a paper sheet can be attached to a suitable base or carrier material by hot pressing. The paper sheet of this invention has the advantage over the heretofore used, simply coated paper sheet that the basis weight of the paper and the amount of impregnating resin can be reduced, that the paper, after pressing, has a higher degree of flexibility, that its craze and crack resistance is considerably improved, and that its hiding, masking, or covering power is superior to that of heretofore produced pigmented and resin coated paper sheets so that light color shades of the resulting laminated articles can be produced in a simple and inexpensive manner. The preferred hardenable impregnating and coating resin in a melamine-ureaformaldehyde resin.，下面是Process of producing pigmented, a hardenable resin containing paper sheets, and products专利的具体信息内容。

权利要求

1. A pigmented paper sheet containing a curable resin, said paper sheet being impregnated with a mixture of a pigment and a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resin, the proportion of pigment and curable resin in said impregnated paper sheet being between about 80:20 and about 50:50, one side surface of said impregnated paper sheet being coated with a mixture of a curable resin, a pigment, and a plasticizer for said resin, the proportion of resin to pigment in said coating being between about 70:30 and about 30:70, the curable resin being selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resin.

2. The pigmented Paper sheet of claim 1, in which additionally the side surface of said paper sheet opposite the coated side surface is provided with a substratum layer of a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea formaldehyde resin.

3. In a process of producing a pigmented, a curable resin containing paper sheet, the steps which comprise a. impregnating the paper sheet with an aqueous dispersion of a pigment and a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resin, the proportion of resin to pigment in said aqueous dispersion being between about 80 : 20 and about 50 : 50, b. coating one side surface of the resulting impregnated paper sheet with a homogenized mixture of a pigment, a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resin, and a plasticizer for said curable resin, the proportion of resin to pigment in said mixture being between about 70 : 30 and about 30 : 70, and c. drying the resulting impregnated and coated paper sheet.

4. In a process of producing a pigmented, a curable resin containing paper sheet, the steps which comprise a. impregnating the paper sheet with an aqueous dispersion of a pigment and a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resin, the proportion of resin to pigment in said aqueous dispersion being between about 80 : 20 and about 50 : 50, b. coating one side surface of the resulting impregnated paper sheet with a homogenized mixture of a pigment, a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resins, and a plasticizer for said curable resin, the proportion of resin to pigment in said mixture being between about 70 : 30 and about 30 : 70, c. providing the other side surface of the paper sheet opposite the one side surface of the paper sheet coated in step (b) with a substratum coating of a curable resin selected from the group consisting of a melamine-formaldehyde resin, a urea-formaldehyde resin, and a melamine-urea-formaldehyde resin, and d. drying the resulting impregnated and coated paper sheet.

5. The process of claim 3, in which the paper sheet is dried after impregnating it in step (a) and before coating one of its surfaces with the homogenized mixture of pigment, curable resin, and plasticizer in step (b).

6. The process according to claim 3, in which the homogenized mixture of curable resin, pigment, and plasticizer used for coating the impregnated paper sheet in step (b) is a mixture homogenized by passing it through roll mills.

7. The process according to claim 4, in which the homogenized mixture of curable resin, pigment, and plasticizer used for coating the impregnated paper sheet in step (b) is a mixture homogenized by passing it through roll mills.

8. The process according to claim 21, wherein the mixture of curable resin, pigment, and plasticizer is applied in step (b) to the impregnated paper by spraying.

9. The process according to claim 4, wherein the mixture of curable resin, pigment, and plasticizer is applied in step (b) to the impregnated paper by spraying.

说明书全文

标题	发布/更新时间	阅读量
一种血管介入手术模拟器	2020-05-08	690
一种等离子体有机废气处理用集尘极板	2020-05-08	923
一种造林育苗专业工具	2020-05-08	305
极柱可动的电池顶盖	2020-05-08	963
一种真空镀膜设备	2020-05-08	500
一种建筑物天花板检修口结构	2020-05-11	924
一种荞麦稳定式的枕芯	2020-05-08	355
柔性出液结构及液体泵	2020-05-11	832
一种防冻垂直盘管结构	2020-05-08	406
线圈结构、阀、空调、净水系统及电器	2020-05-08	716

Process of producing pigmented, a hardenable resin containing paper sheets, and products

该功能需要专业版企业版VIP权限，您可以：