Method for producing sealant

Patent metadata

Field	Value
Publication number	US-2020316539-A1
Application number	US-201816497950-A
Country	US
Kind code	A1
Filing date	Mar 22, 2018
Priority date	Mar 31, 2017
Publication date	Oct 8, 2020
Grant date	—

Abstract

A method for producing a sealant includes a weighing and mixing step, a kneading step, a stirring and defoaming step, and a filling step. In the weighing and mixing step, a main component and a curing agent are weighed and mixed together. In the kneading step, the mixture mixed in the weighing and mixing step is kneaded. In the stirring and defoaming step, the kneaded product kneaded in the kneading step is stirred and defoamed. In the filling step, the kneaded product defoamed in the stirring and defoaming step is filled into a container. In the stirring and defoaming step, the kneaded product is stirred under a condition wherein a stirring rotational speed at which the kneaded product is stirred and a stirring time for which the kneaded product is stirred are within a range from a product lower limit value to a product upper limit value.

First claim

1 . A method for producing a sealant, comprising:
a weighing and mixing step in which a main component and a curing agent are weighed out and mixed together; a kneading step in which the mixture mixed in the weighing and mixing step is kneaded; a stirring and defoaming step in which the kneaded product kneaded in the kneading step is stirred and defoamed; and a filling step in which the kneaded product defoamed in the stirring and defoaming step is filled into a container, wherein, in the stirring and defoaming step, the kneaded product is stirred under a condition in which a product of a stirring rotational speed at which the kneaded product is stirred and a stirring time for which the kneaded product is stirred is within a range from a product lower limit value to a product upper limit value that are predetermined according to a stirring amount of the kneaded product.

2 . The method for producing a sealant according to claim 1 ,
wherein the product lower limit value and the product upper limit value are set so that the stirring time is within a range from an upper limit value to a lower limit value of the preset stirring time.

3 . The method for producing a sealant according to claim 2 ,
wherein the upper limit value of the stirring time is 3 minutes, and wherein the lower limit value of the stirring time is 0.5 minutes.

4 . The method for producing a sealant according to claim 1 ,
wherein the stirring amount of the kneaded product is 270 g to 370 g, wherein the stirring rotational speed is 700 rpm, and wherein the stirring time is 120 seconds.

5 . The method for producing a sealant according to claim 1 ,
wherein, in the stirring and defoaming step, stirring is performed by setting the temperature of the kneaded product kneaded in the weighing and mixing step to 10 degrees to 32 degrees Celsius.

6 . The method for producing a sealant according to claim 1 , comprising
a freezing step in which the kneaded product filled into the container is frozen.

7 . The method for producing a sealant according to claim 2 ,
wherein the stirring amount of the kneaded product is 270 g to 370 g, wherein the stirring rotational speed is 700 rpm, and wherein the stirring time is 120 seconds.

8 . The method for producing a sealant according to claim 3 ,
wherein the stirring amount of the kneaded product is 270 g to 370 g, wherein the stirring rotational speed is 700 rpm, and wherein the stirring time is 120 seconds.

9 . The method for producing a sealant according to claim 2 ,
wherein, in the stirring and defoaming step, stirring is performed by setting the temperature of the kneaded product kneaded in the weighing and mixing step to 10 degrees to 32 degrees Celsius.

10 . The method for producing a sealant according to claim 3 ,
wherein, in the stirring and defoaming step, stirring is performed by setting the temperature of the kneaded product kneaded in the weighing and mixing step to 10 degrees to 32 degrees Celsius.

11 . The method for producing a sealant according to claim 4 ,
wherein, in the stirring and defoaming step, stirring is performed by setting the temperature of the kneaded product kneaded in the weighing and mixing step to 10 degrees to 32 degrees Celsius.

12 . The method for producing a sealant according to claim 2 , comprising
a freezing step in which the kneaded product filled into the container is frozen.

13 . The method for producing a sealant according to claim 3 , comprising
a freezing step in which the kneaded product filled into the container is frozen.

14 . The method for producing a sealant according to claim 4 , comprising
a freezing step in which the kneaded product filled into the container is frozen.

15 . The method for producing a sealant according to claim 5 , comprising
a freezing step in which the kneaded product filled into the container is frozen.

Assignees

• Mitsubishi Heavy Ind Ltd
• Kaga Sangyo Co Ltd
• Kaga Works Co Ltd

Inventors

• Yamane Shigemi
• Mizoguchi Osamu
• Tsujikawa Hitoshi

Classifications

• B29B7/845 Primary

  Venting, degassing or removing evaporated components in devices with rotary stirrers · CPC title

• B01F2101/2204

  Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application · CPC title

• B01F23/511

  characterised by the composition of the liquids or solids · CPC title

• B01F27/95 Primary

  with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis · CPC title

• B01F23/809

  Freezing the mixture · CPC title