Who invented glue?

What kind of glue are you talking about? The range is too wide to answer your question correctly. Let me list two kinds of plastic handles first. I hope you have an answer. Haha scotch tape 1928 scotch tape Richard drew, St. Paul, Minnesota, USA 1928 filed an application in Britain and the United States on May 30, 2008. Drew developed a light pressure-sensitive adhesive. The initial attempt was not sticky enough, so Drew was told, "Take this back to your Scottish boss and ask them to apply more adhesive!" ("Scotland" means "stingy" However, during the Great Depression, people found hundreds of uses of this tape, from mending clothes to protecting broken eggs. Why can adhesive tape stick things? Of course, it is because its surface is coated with a layer of glue! The earliest adhesives came from animals and plants. In the19th century, rubber was the main component of adhesives. In modern times, various polymers are widely used. Adhesives can stick to things because they form bonds between their own molecules and the molecules of the connected objects, which can firmly stick the molecules together. The composition of adhesive, according to different brands and types, has a variety of polymers. Self-adhesive label material was invented by American R. Stanton Avery in the s. At first, it was made by hand. Later, Mr. Avery invented the first coating machine and label production equipment and started mechanized production. Self-adhesive materials are a great challenge to traditional label materials and a revolution in the field of labels. Since 1990s, the technology of self-adhesive materials has been rapidly popularized all over the world. Some countries have established factories and researched and developed various label materials. The development history of self-adhesive materials is also the development history of science and technology in this century. At present, the basic situation of self-adhesive materials in the world is as follows: ① Fabric. Mainly based on paper, it has developed into various materials and special uses, such as synthetic materials, anti-counterfeiting materials and transfer materials. ② Adhesive. From solvent-based and hot-melt adhesives that pollute the environment to water-soluble emulsion adhesives that do not pollute the environment. ③ coating technology. There are many kinds of coating methods, and the current development direction is from traditional roll coating, blade coating to high-pressure tape casting coating, so as to ensure the uniformity of coating to the greatest extent, avoid bubbles and pinholes and ensure the coating quality.